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

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

The average of 9 number is 11.if each of these 9 numbers is multiplied by 5 and then 5 is added to each of these resultant numbers then the new average is:

The average of 9 numbers is 11. If each of these 9 numbers is multiplied by 5 and then 5 is added to each of these resultant numbers, then the new average is :

If a number is multiplied by 5 and 5 is added to it, then the result is equal to 50. Find the number

Find a number which when multiplied by 5 is increased by 80.

If the length of a rectangle is increased by 5 % and the breadth of the rectangle is decreased by 6 % , then find the percentage change in area.