CBSE > Class 08 > Mathematics | CBSE Board | Homework Help

a bag contains 16 balls out of which 7 are black and rest are white if one balls is drawn at random find the probability of drawing A) black balls B) white ball

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Rajneesh Jana 6 years ago

A)7/16 B)9/16

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ANSWER

The side of rectangular field are 8cm & 6cm. Find the length of its diagonal

Posted by Ashhhh 777 6 years ago

CBSE > Class 08 > Mathematics

0 answers

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Find the square of 3 upon 2

Posted by Ashhhh 777 6 years ago

CBSE > Class 08 > Mathematics

2 answers

Sandy Bhatt 6 years ago

9/4=2.25

1Thank You

Daksh Shrivastav 6 years ago

Answer is 2.25

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ANSWER

Reena bought a fan at 1080 including 8% vat find the price of fan before vat was added

Posted by Priya Arora 6 years ago

CBSE > Class 08 > Mathematics

0 answers

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How many natural numbers lie between n square and n+1 whole square

Posted by Ankit Sharma 6 years ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

Raman sells two wistwatch for Rs 1200 each . On one watch gain 20% and another he loses 20%. What are the cost prices of each, and whatis his total gain or loss percentage?

Posted by Chansani Shinde 6 years ago

CBSE > Class 08 > Mathematics

0 answers

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What should be subtracted from-5 upon 4 so as to get 11 upon 9 ?

Posted by Vipin Duby 6 years ago

CBSE > Class 08 > Mathematics

0 answers

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Draw A pie chart Of The data given below : % of the favourite flavour of ice creams for the students of a school is given

Posted by Sri Devi Akshaya 6 years ago

CBSE > Class 08 > Mathematics

0 answers

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Example 6 add Part 2. 4y(3y²+5y-7) and 2(y³-4y²+5

Posted by Mohd Altaf 5 years ago

CBSE > Class 08 > Mathematics

0 answers

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What is GST

Posted by [email protected] B 6 years ago

CBSE > Class 08 > Mathematics

1 answers

Ishu Sharma 6 years ago

Good and service tax

2Thank You

ANSWER

What is constant

Posted by Punam Thapa 6 years ago

CBSE > Class 08 > Mathematics

1 answers

Ritesh Yadav 5 years, 11 months ago

A constant is a term which have a fixed numerical value

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ANSWER

A rectangular piece of paper 11cm×4cm is folded without overlapping to make a cylinder of height 4cm . Find the volume of cylinder

Posted by Purva Boharupi 6 years ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 6 years ago

Length of rectangle paper =11cm
Breath of rectangle paper =4cm

So circumference of circular part of cylinder =2 pi r

So it is equal to length of paper (paper folded in shape of cylinder)

7=2 π r
r=7/2 π
R=1.11cm

Volume of cylinder = π r² h
H=4cm
R=1.11cm

Volume = 3.14x(1.11)²x4=15.48cm³

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Annual exam paper

Posted by Aashu Singh 6 years ago

CBSE > Class 08 > Mathematics

0 answers

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Area of circle formula

Posted by Ashok Kumar Dalai 6 years ago

CBSE > Class 08 > Mathematics

3 answers

Ritesh Yadav 5 years, 11 months ago

Pi r square

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Archana Raj 6 years ago

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Gaurav Yadav 6 years ago

π×r×r

2Thank You

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x+1÷2=5

Posted by Akshay Sheoran 6 years ago

CBSE > Class 08 > Mathematics

7 answers

Ritesh Yadav 5 years, 11 months ago

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Ashok Kumar Dalai 6 years ago

x+1÷2=5 =x+1=5×2 =x+1=10 =x=10-1 =x=9

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[email protected] B 6 years ago

x+1/2=5 x=5*2-1 x=10-1 x=9

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[email protected] B 6 years ago

x *1/2 = 5 x=1*5/2 x=5/2 x=4.5

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Sukhmeen Kaur 6 years ago

7.6-?+?7.89=6x=?

1Thank You

Vishesh Das Mahapatra 6 years ago

x+1=5*2 x+1=10 x=10-1 x=9

3Thank You

Ibrahim Kazi 6 years ago

4444

1Thank You

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Given figure HOPE is a parallelogram, find the measures of angle xyz

Posted by Yash Sharma 6 years ago

CBSE > Class 08 > Mathematics

1 answers

Hem Shukla 6 years ago

Where is figure HOPE?

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ANSWER

Expand (2x + 5y)² by using suitable identify

Posted by Vikas Singh 6 years ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 6 years ago

(a + b)²= a² + 2ab + b²

(2x + 5y)² = (2x)² + 2 (2x)(5y) + (5y)²

= 4x² + 20 xy + 25 y²

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A shop gives 20% discount what would the sale price of each of these be ? A dress marked at 120 rupees

Posted by Prajwal Merat 6 years ago

CBSE > Class 08 > Mathematics

1 answers

Viral Halvadia 6 years ago

1Thank You

ANSWER

Factorise 3a2+9a+6

Posted by Kalpana Pandey 6 years ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 6 years ago

3a² + 9a +6

= 3a² + 3a + 6a + 6

= 3a(a + 1)+ 6 (a +1)

= (a + 1) (3a + 6)

2Thank You

ANSWER

The common factor of A axis square baxisis

Posted by Ankush Goyat 6 years ago

CBSE > Class 08 > Mathematics

1 answers

Bindings Verma 6 years ago

1Thank You

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How do we add minomials etc...

Posted by Anagha Benny 6 years ago

CBSE > Class 08 > Mathematics

0 answers

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Chapter 13, exercise 13 .1

Posted by Patel Kathan 6 years ago

CBSE > Class 08 > Mathematics

2 answers

Divyanshi Yadav 6 years ago

tell which question

0Thank You

Angel Gautam Av 2124 6 years ago

Given in this app only ?

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Chapter 13, exercise 13.1

Posted by Patel Kathan 6 years ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

Find the selling price if a profit of 5%is made on a lawn moreover bought at ruppes 1150 with rupees 50 as transportaion charges

Posted by Pri30 B. Sah 6 years ago

CBSE > Class 08 > Mathematics

2 answers

Vishesh Das Mahapatra 6 years ago

Total CP=1150+50=1200rs Profit%=5% Profit=5% of 1200rs =5/100*1200 =60rs Total SP=1200+60=1260rs

1Thank You

Sohail Pasha 6 years ago

1150+50=1200 according to the question, 100-105 1200-x (cross multiplication) X=1200×105 100 X=12×105 X=1260 Hence, s. p=Rs.1260.

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If 8.5%of a number is 51then find the number

Posted by Pri30 B. Sah 6 years ago

CBSE > Class 08 > Mathematics

1 answers

Sohail Pasha 6 years ago

I think the answer will be 4.335 because 8.5÷100×51=4.335

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The sum of the digit of a two digit number and the number formed by interchanging it's digit is 110. If 10 is subtracted from the first number the new number is 4 more than 5 times the sum of the digits in the first number. The first number is ?

Posted by Vidya Shankar Tiwari 6 years ago

CBSE > Class 08 > Mathematics

1 answers

Divyanshi Yadav 6 years ago

Let unit digit be x and tens digit be y number =10y+x according to question :- (10y+x)+(10x+y)=110 11x+11y =110 (x+y)=10 :-(1) x+y = 10 y=(10-x ):-(2) 10y+x-10= 5(x+y)+4 10y+x-10=5x+5y+4 -5y+4x=-14 :-(3) putting value of equation no.2 in equation no.3 :- -5(10 - x)+4x =-14 -50+5x+4x =-14 9x -50=-14 9x=-14+50 9x=36 x=4 y =10-x y=10-4 y=6 number = 10y+x no.=10×6+4 no.= 60+4 no.=64 [Answer ]

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Construct a rectangle with digonal-5cm and side-3cm

Posted by Saroj Kumar Jena 6 years ago

CBSE > Class 08 > Mathematics