Question
If the diameter of a wire is decreased by
10%, by how much percent (approximately) will the length be increased to keep the volume constant ?Solution

How many integer pairs (x, y) satisfy the inequality x2 + 4y2 < 100?
How many Zeros can be formed by multiplying 10 times; 20 times; 30 times; 40 times; ...............times; 2000?
- If 246x179y is divisible by 72, find the value of (x + 2y).
If 94*6714 is divisible by 11, where * is a digit, then * is equal to
Determine the unit digit of the product: 785×6194×319×1296
'N' is the largest three-digit number that leaves 2 as a remainder when divided by 9, 12 and 5, Find the sum of digits of 'N'.
- A room contains three shelves: the 1st, 2nd, and 3rd. The number of books on the 1st and 2nd shelves are in the ratio of 6:11, while the number of books on...
Find the number which is nearest to 457 and is exactly divisible by 11.
120 is divided into two parts in such a way that the sixth part of the first part and the seventh part of the second are in the ratio 5 : 6. How much pe...
Find the number of Digits required to write down the number of Pages in a 500 page book?