Secondary School (English Medium) (5 to 8) कक्षा ८ - CBSE Question Bank Solutions for Mathematics

Find the square root  the following by prime factorization.

 8281

Find the square rootthe following by prime factorization.  

11664 

Find the square root  the following by prime factorization.  

 47089

Find the square root the following by prime factorization. 

24336 

Find each of the following product: \[\left( \frac{4}{3}p q^2 \right) \times \left( - \frac{1}{4} p^2 r \right) \times \left( 16 p^2 q^2 r^2 \right)\]

Find the square root  the following by prime factorization. 

 190969

Find each of the following product:
(2.3xy) × (0.1x) × (0.16)

Find the square root the following by prime factorization. 

586756 

Find the square root  the following by prime factorization. 

27225

Find the square root the following by prime factorization. 

3013696

Find the smallest number by which 180 must be multiplied so that it becomes a perfect square. Also, find the square root of the perfect square so obtained.

Find the smallest number by which 147 must be multiplied so that it becomes a perfect square. Also, find the square root of the number so obtained.

Express each of the following product as a monomials and verify the result in each case for x = 1:
(3x) × (4x) × (−5x)

Find the smallest number by which 3645 must be divided so that it becomes a perfect square. Also, find the square root of the resulting number. 

Find the smallest number by which 1152 must be divided so that it becomes a perfect square. Also, find the square root of the number so obtained.

The product of two numbers is 1296. If one number is 16 times the other, find the numbers.

A welfare association collected Rs 202500 as donation from the residents. If each paid as many rupees as there were residents, find the number of residents.

A society collected Rs 92.16. Each member collected as many paise as there were members. How many members were there and how much did each contribute? 

A school collected Rs 2304 as fees from its students. If each student paid as many paise as there were students in the school, how many students were there in the school? 

Express each of the following product as a monomials and verify the result in each case for x = 1:
(4x²) × (−3x) × \[\left( \frac{4}{5} x^3 \right)\]