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

The sum of two numbers is \[\frac{- 1}{3} .\]  If one of the numbers is \[\frac{- 12}{3},\] find the other.

By what number should each of the following numbers be multiplied to get a perfect square? Also, find the number whose square is the new number. 

2880

The sum of two numbers is \[\frac{- 4}{3} .\] If one of the numbers is −5, find the other.

By what number should each of the following numbers be multiplied to get a perfect square? Also, find the number whose square is the new number.  

 4056

By what number should each of the following numbers be multiplied to get a perfect square ? Also, find the number whose square is the new number. 

3468

By what number should each of the following numbers be multiplied to get a perfect square ? Also, find the number whose square is the new number. 

7776 

By what numbers should each of the following be divided to get a perfect square ? Also, find the number whose square is the new number. 

16562 

By what numbers should each of the following be divided to get a perfect square? Also, find the number whose square is the new number. 

 3698

By what numbers should each of the following be divided to get a perfect square ? Also, find the number whose square is the new number. 

 5103

By what numbers should each of the following be divided to get a perfect square? Also, find the number whose square is the new number. 

 3174

What should be added to \[\frac{- 7}{8}\]  so as to get \[\frac{5}{9}?\]

By what numbers should each of the following be divided to get a perfect square ? Also, find the number whose square is the new number. 

 1575 

What number should be added to \[\frac{- 5}{11}\] so as to get\[\frac{26}{33}?\]

Find the greatest number of two digits which is a perfect square.

What number should be added to \[\frac{- 5}{7}\] to get\[\frac{- 2}{3}?\]

Find the least number of three digits which is perfect square.

What number should be subtracted from \[\frac{- 5}{3}\] to get\[\frac{5}{6}?\]

Find the smallest number by which 4851 must be multiplied so that the product becomes a perfect suqare. 

Find the smallest number by which 28812 must be divided so that the quotient becomes a perfect square. 

Find the smallest number by which 1152 must be divided so that it becomes a perfect square. Also, find the number whose square is the resulting number.