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

Sum of two numbers is 74. One of the numbers is 10 more than the other. What are the numbers?

What should be added to twice the rational number `(-7)/3 "to get" 3/7`?

The perimeter of a rectangle is 13 cm and its width is `2 3/4` cm. Find its length.

The present age of Sahil's mother is three times the present age of Sahil. After 5 years their ages will add to 66 years. Find their present ages.

Bansi has 3 times as many two-rupee coins as he has five-rupee coins. If he has in all a sum of Rs. 77, how many coins of each denomination does he have?

The difference between two whole numbers is 66. The ratio of the two numbers is 2: 5. What are the two numbers?

Deveshi has a total of ₹ 590 as currency notes in the denominations of ₹ 50, ₹ 20, and ₹ 10. The ratio of the number of ₹ 50 notes and ₹ 20 notes is 3: 5. If she has a total of 25 notes, how many notes of each denomination she has?

Multiplicative inverse of a negative rational number is ______

To get the product 1, we should multiply `8/21` by ______.

The multiplicative inverse of `-1 1/7` is ______.

The reciprocal of 1 is ______.

The reciprocal of –1 is ______.

The reciprocal of 0 is ______.

The reciprocal of any rational number `p/q`, where p and q are integers and q ≠ 0, is ______.

If y be the reciprocal of rational number x, then the reciprocal of y will be ______.

The reciprocal of `(-3)/8 xx ((-7)/13)` is ______.

The reciprocal of a positive rational number is ______.

The reciprocal of a negative rational number is ______.