A number is multiplied by `(7)/(5)` what is the percentage increase in it?

If the area of reatangle is increased by 13% and its breadth is increased by 5%, then what is the percentage increase in its length? (Approximately)

Average of ten numbers is 7. If every number is multiplied by 12, what will be the average of new numbers?

A number x is mistakenly deivided by 10 instead of being multiplied by 10. What is the percentage error in the result ?

A number is mistakenly divided by 5 instead of being multiplied by 5 .Find the percentage change in the result due to this mistake

If the sides of a rectangle are increased by 5 % , find the percentage increase in its diagonals.

A student multiplied a number by (3)/(5) instead of (5)/(3). What is the percentage error in the calculation? 34% b.44% c.54% d.64%

The maximum height attained by a projectile is increased by 5%. Keeping the angle of projection constant, what is the percentage increases in horizontal range?