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The sum of first 20 term of and ap is 80 and sum of 95 next term of the same ap is 1330. Find the first term and common difference

Posted by Fiza Khan 7 years, 8 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

What is 2+2

Posted by Rahul Gehlot 7 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Pankaj Gupta 7 years, 8 months ago

4

ANSWER

A train is traveling x speed by 63 km 6km p hour more speed from origin speed travelled 72 km distance if total 3 hour take time what it's origin speed

Posted by Ashish Yaduvanshi 7 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Piyush Jha 7 years, 8 months ago

Let us considered original speed be xkm/h t=s/d A. T. Q. 63/x. =i When train increased its speed= 72/x+6. =i A. T. Q. =63/x +72/x+6=3 By L. C. M. =63x+378+72x/(x)(x+6) =135x+378/x²+6x By cross multiplication =135x+378=3x²+18x =135x-18x+378=3x² =117x+378=3x² =3x²-117-378 D =b²-4ac = 117²-(4).(3).(-378) =13689+4536 =18225 =x=-b+-√d/2a =x=-(-117)+-√18225 =117+-135=252/6. =42 or. -18/6=-3 = since speed cannot be negative we take speed=42 km/h

Aayush Patel 7 years, 8 months ago

42km/hr

ANSWER

The house of a row numbered consecutively from 1 to 49.show that there is a value of 'x'such that the sum of number of the houses following it. Find this value of 'x'?

Posted by Maunisha Mallan Mallan 7 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Monty Stewart 7 years, 8 months ago

X=35

Vishal Kaushik 7 years, 8 months ago

It's very easy

ANSWER

4usqare plus 8u , Find the zeroes and verify the relationship between the zeroes and the cofficients

Posted by Bunnu Rawat 7 years, 8 months ago

CBSE > Class 10 > Mathematics

3 answers

Piyush Jha 7 years, 8 months ago

4u²-8u=0 =4u(u-2)=0 =4u=0 =u=0 u-2=0 u= 2 Let us consider 2 as alpha and 0as beta Alpha+beta=-b/a =2+0= 8/4 =2=2 Alpha ×beta = c/a =2×0=0/4 =0=0 Hence relationship has verified

Maunisha Mallan Mallan 7 years, 8 months ago

As it is given.. 4usquare+8u=0 Then.... Take 4 nd u as common,4u(u+2) Equating 4u nd u+2 equal to 0, 4u=0.....u=0 u+2=0....u=-2 Then.....sum of zeroes=-b/a ......0+(-2)=-8/4 -2. = -2 Then.... product of zeroes=c/a ..... ............0*(-2) =0/4 0. = 0

Tapan Pandey 7 years, 8 months ago

Yaar , 4u Ko common Lelo toh (u+2) bachega, fir 4u=0 then u=0, and u+2=0 then u=-2

ANSWER

Someone plz help me... How I will delete account in this app??

Posted by Shahma Sanah 7 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Vishal Kaushik 7 years, 8 months ago

Account to delete pta nhi pr yeh ho skta h ki aap puri id change kr do fake dalke ok

Gyan Prakash 7 years, 8 months ago

Esse Account delete nhi hota hai.

ANSWER

Dsr modern school students

Posted by P S 7 years, 8 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Date of our maths exam that is going to be conducted again

Posted by Dipansh Garg 7 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Yogendra Singh 7 years, 8 months ago

Re exam date announced Monday or Tuesday

P S 7 years, 8 months ago

The date will be announced within 3 to 4 days

ANSWER

The mean of 5number is 18.if one number is excluded then their mean is 16, then what is the excluded number

Posted by Sonal Uikey 7 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Abhijeet Rana 7 years, 8 months ago

The mean of 5 numbers is 18 . it means that there average is 18. So total sum of 5 numbers is 5× 18=90. And when one numbers excluded then total numbers are 4 . And mean = 16 so total sum = 16×4= 64. So to find that numbers we have to do 90 - 64=26.

ANSWER

What is the distance of point P(x,y) from origin.

Posted by Akif Ali Khan 7 years, 8 months ago

CBSE > Class 10 > Mathematics

3 answers

Yogendra Singh 7 years, 8 months ago

√(x-0)²+(y-0)²=√x²+y²

Mr Lovely 7 years, 8 months ago

Under root x2+y2

Akif Ali Khan 7 years, 8 months ago

√xsquare + T-square unit

ANSWER

The mean of 20numbers is 17, if 3is added to each number, then what is the new mean

Posted by Sonal Uikey 7 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Abhijeet Rana 7 years, 8 months ago

20

ANSWER

Find the area of the shaded region in fig-3 Were arc drawn with centres A.B.C D INtersct in a pair at mid points P.Q.R.and S OF the sides AB .BC .CD and DA respectively of a square ABCD of side 12cm

Posted by Ankush Kumar 7 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Sanjeev Saxena Saxena 7 years, 8 months ago

bhai area of square- area of 4 quadrant... use this formula... radius is 6cm.

ANSWER

When is your nxt paper...going to be on??? .....

Posted by Uday Chib 7 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Tapan Pandey 7 years, 8 months ago

Your????????we all have to give maths exam......... OK.

Pankaj Gupta 7 years, 8 months ago

Kalidas

ANSWER

What is the maths exam date for re_examination?

Posted by Utshuk Dutta 7 years, 8 months ago

CBSE > Class 10 > Mathematics

6 answers

Shruti Sahoo 7 years, 8 months ago

I think around 9or 10

Maunisha Mallan Mallan 7 years, 8 months ago

Yea.. It's fake news..

Mitul Kumawat 7 years, 8 months ago

Rumors are there about 26 april

Pikachu X 7 years, 8 months ago

Maybe 26th April.... not sure if it's real or fake

Rekha Varshini 7 years, 8 months ago

Re-exam for maths will be held on 26th April

Darshanaa Yadav 7 years, 8 months ago

Not announce by cbse yet

ANSWER

Kon kon yaha faridabad se hai?

Posted by Vishal Kaushik 7 years, 8 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

The sum of four consecutive no. in an A.P is 32 & the ratio of the product of the first and last term to the product of two middle terms is 7:15 . Find the numbers .

Posted by Nivedita Pandey 7 years, 8 months ago

CBSE > Class 10 > Mathematics

4 answers

Vishal Kaushik 7 years, 8 months ago

Let 4 consecutive terms be a-3d ,a-d,a+d,a+3d

Vishal Kaushik 7 years, 8 months ago

a =8 and d = +_2 and no. Are 2,6,10,14and 14,10,2 due to two values of d

Ankit Gupta 7 years, 8 months ago

Ab kya faayeda yr.. Ppr to cancel ho gya

Tanu Priya 7 years, 8 months ago

2,6,10,14

ANSWER

Koi MVN sec 17 school se hai kya ?

Posted by Vishal Kaushik 7 years, 8 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

I can't concentrate on studies what should I do????

Posted by Anjali Shahni 7 years, 8 months ago

CBSE > Class 10 > Mathematics

5 answers

Satender Kumar 7 years, 8 months ago

thoda roo le taki cbse reexam cancel kar de maths ka

Anjali Shahni 7 years, 8 months ago

After knowing re examination of maths

Sanjana Yadav 7 years, 8 months ago

Phone hame study se disattract karta h

Shyam Jaat ? (?हर हर महादेव ?) 7 years, 8 months ago

Sahi baat h

Sanjana Yadav 7 years, 8 months ago

Phone se dur

ANSWER

http://samtruckparts.com/yP6NR//506336d56a350b07ade47d3537ec6fce/fcb/en/?i=2789107&i=2789107 see the final date of maths exam class 10

Posted by Ashu Bhadouriya 7 years, 8 months ago

CBSE > Class 10 > Mathematics

3 answers

Rachit Roy 7 years, 8 months ago

Yes! What's this????

. . 7 years, 8 months ago

Ye kya h?

Anjali Shahni 7 years, 8 months ago

Kuch v?

ANSWER

Which extra book of maths is good for class 10?

Posted by Ashu Bhadouriya 7 years, 8 months ago

CBSE > Class 10 > Mathematics

5 answers

Maunisha Mallan Mallan 7 years, 8 months ago

First complete all chapter from ur ncert book.. Then try to revise RD sharma.. As well ncert exampler

Ashu Bhadouriya 7 years, 8 months ago

I am student of class 9 promote today for class10 that's why i ask

Mr Lovely 7 years, 8 months ago

Vidya question bank le lo..most of questions r asked from it

Satender Kumar 7 years, 8 months ago

RD SHARMA

Satender Kumar 7 years, 8 months ago

phale maths ka paper to dele fir baat karage extra book ki

ANSWER

Hii dear friends anyone know ki maths k exam ki confirm date kya h ????

Posted by Vaishnavi Srivastava 7 years, 8 months ago

CBSE > Class 10 > Mathematics

4 answers

Ashitha Kollur 7 years, 8 months ago

They will be announcing within this weak......

Deeksha Srivastava 7 years, 8 months ago

Who told u it's 26 april

Satender Kumar 7 years, 8 months ago

pakka

Ritu Dhingra 7 years, 8 months ago

Yes it is 26 april

ANSWER

Find the volume of a sphere,whose surface area is154cm2

Posted by Md Wahid 7 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Sanjana Yadav 7 years, 8 months ago

Ye to class 9 ka qtion h

ANSWER

What is a largest prime number?

Posted by Tanu Jhariya 7 years, 8 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Maths set 3 question no 18 solution

Posted by Khushi Dubey 7 years, 8 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

When the paper of class 10th maths will held again

Posted by Sparsh Maheshwari 7 years, 8 months ago

CBSE > Class 10 > Mathematics

4 answers

Ritu Dhingra 7 years, 8 months ago

Search on google that " TIMES OF INDIA LATEST UPDATE OF CBSE" YOU WILL GET TO KNOW

Ritu Dhingra 7 years, 8 months ago

Date has been declared It is on 26 april

Mr Lovely 7 years, 8 months ago

Ples..wait..it will be clear within a week

Kapil Upadhyay 7 years, 8 months ago

Date will be released on Monday or Tuesday

ANSWER

Solve for X and Y:. X+Y=30 X-Y=14

Posted by Vicky Kumar 7 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Bhartendra Singh 7 years, 8 months ago

X =22.and Y =8

Anupam Garg 7 years, 8 months ago

X+y=30 X=30-y Put value of x in x-y=14 30-y-y=14 -2y=14-30 -2y=-16 y=8 (because minus cancel wth minus and we divide 2 by 16) Put value of y in x +y=30 X+8=30 X=30-8 X=22 So,the value of x and y is 22 and 8

ANSWER

X+y=30 X-y=14

Posted by Vicky Kumar 7 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Kapil Upadhyay 7 years, 8 months ago

X=22 y=8

ANSWER

pls pls pls clarify this doubt need answer for this ques a plane left 30 min late than its scheduled time and in order to reach the destination 1500 km away in time ,it had to increase its speed by 100 km/hr from the usual speed. find its usual speed this is cbse maths 2018 question. series TYM code 30/1

Posted by Koushik Kumar 7 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

The Raj 7 years, 8 months ago

1500/x - 1500/x+100 = 1/2 Solving X=500km/hr

Mr Lovely 7 years, 8 months ago

Solve it 1500/x-1500x+100 = 1/2

ANSWER

Probability wale question me between 1 to 100 tha toh usme total outcomes kitne lene the 100 or 98?????

Posted by Preksha Marwaha 7 years, 8 months ago

CBSE > Class 10 > Mathematics

5 answers

Abhijeet Rana 7 years, 8 months ago

98 because it is between 1 and 100 so it does not include 1 and 100 i was also get confuse in exam.

Preksha Marwaha 7 years, 8 months ago

Is anyone 100% sure about the answer??

Abhishek Bansal 7 years, 8 months ago

100

Zehra Mustafa 7 years, 8 months ago

What was the answer

The Raj 7 years, 8 months ago

98

ANSWER

7root2

Posted by Ansh Singh 7 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Zehra Mustafa 7 years, 8 months ago

Ansh are you of olf

Sanjana Yadav 7 years, 8 months ago

Ansh tum jo class 9 me the

ANSWER

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