CBSE > Class 10 > Mathematics | CBSE Board | Homework Help

We will subtract 8 from 520 and 17 from 468 . By subtracting these we get 451 and 512 . Now by long division method or either by euclid division algo.divide them you will get the ans.1

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Find the smallest number which leves reminder 8and12 when division by 28 and 32 respectively?

Posted by Ashmit Singh 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Avinash Kumar 7 years, 6 months ago

First, we find L.C.M of 28 and 32 28= 2 . 2 . 7 32= 2 . 2 . 2 . 2 . 2 L. C. M (28,32)= 2 . 2 . 2 . 2 . 2 . 7=224 The smallest number that leaves remainder 8 and 12 when divided by 28 and 32 = 224 -(8+12) = 204 Thus, 204 is required smallest number.

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How form of comp math subject fill up

Posted by Dhrub Karmakar 5 years, 8 months ago

CBSE > Class 10 > Mathematics

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What sun

Posted by Ansh Verma 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Rahul Raj Veer 7 years, 6 months ago

The sun is a huge glowing sphere of hot gas , most of this gas is hydrogen(about 70%) and helium(about 28%).Carbon , nitrogen and oxygen make up 1.5% and the other 0.5% is made up of small amounts of many other elements such as neon , iron , silicon , magnesium , sulphur.

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Use Euclid algorithm to find the hcf of1190 and 1445. Express as hcf in form 1190m+1445n

Posted by Aditya Narayana Lenka 6 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 6 months ago

Here we have to find HCF of 1190 and 1445 and express the HCF in the form 1190m + 1445n.
1445 = 1190 × 1 + 255
1190 = 255 × 4 + 170
255 = 170 × 1 + 85
170 = 85 × 2 + 0
So, now the remainder is 0, then HCF is 85
Now,
85 = 255 - 170
= (1445 - 1190) - (1190 - 255 × 4)
= 1445 - 1190 - 1190 + 255 × 4
= 1445 - 1190 × 2 + (1445 - 1190) × 4
= 1445 - 1190 × 2 + 1445 × 4 - 1190 × 4
= 1445 × 5 - 1190 × 6
= 1190 × (- 6) + 1445 × 5
= 1190m + 1445n , where m = - 6 and n = 5

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If 9×5×2=529and 4×7×2=724 then find value of 3×9×8

Posted by Bhoomika Shukla 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Abhinav Kumar Jha 7 years, 6 months ago

983

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I wamt to learn substituting metod of ch 3

Posted by Harsh Fultariya 7 years, 6 months ago

CBSE > Class 10 > Mathematics

4 answers

Rahul Raj Veer 7 years, 6 months ago

Substitution is the method of substituting a value of let's say "x" from an equation to another equation.

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Shivani K 7 years, 6 months ago

Ch-3 example7 pdhlo vha s smz aa jayega

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Shivani K 7 years, 6 months ago

Obviously in math substitution method math m hii h

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Apurvi Gupta 7 years, 6 months ago

From which subject??

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What is the HCF of 24&42

Posted by Samir Sirsath 7 years, 6 months ago

CBSE > Class 10 > Mathematics

6 answers

Diwas Bhandari 7 years, 6 months ago

2×3×2×2 2×3×7 = 2

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Nishi K 7 years, 6 months ago

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Apurvi Gupta 7 years, 6 months ago

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Maharshi Patel 7 years, 6 months ago

1Thank You

Salai Sanmargam 7 years, 6 months ago

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Samir Sirsath 7 years, 6 months ago

6 is the hcf of 24&42

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A part of monthly hostel chathese is fixed and the remaining depends on the number of days one has taken food in the mess.When a student At takes food for 20 days she has to pay rs.1000 as hostel charge where as a student B,who takes food for 26 days ,pays rs.1180 as hostel charge. Find hostel charge for 17 days

Posted by Fathima Fiza 7 years, 6 months ago

CBSE > Class 10 > Mathematics

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Find the sume of 16terms of an ap -1,-5,-9,.....

Posted by Pavan Surwase 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Chhavi Agarwal 7 years, 6 months ago

Put the formula of sum i.e. n/2 (2a + n-1) d .now by putting the value , u will get the ans. -496

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4( )4( )4( )4=20

Posted by Mohit Raajz 7 years, 6 months ago

CBSE > Class 10 > Mathematics

5 answers

Mohit Raajz 7 years, 6 months ago

4(÷)4(+)4(×)4=20

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Mukesh Gaur 7 years, 6 months ago

4 (1/4)4 (1/4)4 (5/4)4

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Samit Gautam 7 years, 6 months ago

4(2)4(1)4(1)4=20

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Mohit Raajz 7 years, 6 months ago

Plz fillup only signs

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Vansh Sehgal 5 years, 8 months ago

4 (0)4(0)4(0)4(5)=20

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if n is any prime number and a square is divisible by n . then n also divide a , justify

Posted by Nivedhitha Gouda 7 years, 6 months ago

CBSE > Class 10 > Mathematics

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if m and n are odd positive integers then m2+n2 is even but not divisible by 4 justify

Posted by Nivedhitha Gouda 7 years, 6 months ago

CBSE > Class 10 > Mathematics

3 answers

Nivedhitha Gouda 7 years, 6 months ago

and it's not m×2 its m square

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Nivedhitha Gouda 7 years, 6 months ago

no M and n should be odd

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Mohit Raajz 7 years, 6 months ago

When m=2,n=3, 2m+2n=2×2+2×3=4+6= 10 Which is even

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a³-12a(a-4)-64

Posted by Mohit Raajz 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Samit Gautam 7 years, 6 months ago

a³- 12a² + 48a - 64

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In a seminar the number of participants in hindi eng and maths are 45,63&81 .find the minimum no of rooms required if in each room the same nos of participants are to be seated and all of them being in the same sub

Posted by Gayatri Kalo 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Kartik Tiwari 7 years, 6 months ago

Simple it says minimum so just find the lcm which in this case is 9

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a³-12(a-4）-64

Posted by Mohit Raajz 7 years, 6 months ago

CBSE > Class 10 > Mathematics

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Find a quadratic polynomial,the sum of whose zeroes is 7 and their product is 12.Hence find the zeroes of the polynomial

Posted by Rishith Pk 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Nivedhitha Gouda 7 years, 6 months ago

X^2 - 7x + 12

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What is unique solution

Posted by Srinidhi Meena 7 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Mukesh Gaur 7 years, 6 months ago

it doesn't means a single one but having all solutions be equal

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Nivedhitha Gouda 7 years, 6 months ago

Single solution that satisfy both the equations

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find the HCF of 52 and 117 and Express in the form of 52 X + 117 y

Posted by Nivedhitha Gouda 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Hani Hani 7 years, 6 months ago

By Euclid's lemma , 117=52×2+13 52=13×4+0 HCF is 13 13=117-(52×2) =117×1-52×2 =117y+52x(where y=1,x=-2)

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Trignomery

Posted by Gyanorakash Bhawsar 7 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Kartik Tiwari 7 years, 6 months ago

The most boring samajh na aay to sir ke upar

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Ganesh Kushwah 7 years, 6 months ago

Trignometery hota hai

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How to calculate lcm

Posted by Sourabh Khandelwal 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Sahil Kumar 7 years, 6 months ago

Lcm means lowest common multiple so, If we have to find Lcm of 12..then find llowest common multiple let's see, 12=2×6 6=2×3 Or 3=3×1 Hence lcm of 12=2×2×3. Also if we want to find Lcm of Two or more than two no. First brought every no in form( as we have done above) and then find lowest common factors from them ..

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factories by middle term split x²+2√5x-3

Posted by Samarth Srivastava 7 years, 6 months ago

CBSE > Class 10 > Mathematics