A number decreased by `40%` gives 135. the number is

A number decreased by 30% gives 84. the number is

A number decreased by 8% gives 69. the number is

A number decreased by 20(1)/(2)% gives 62. The number is

A number decreased by 27(1)/(2)% gives 87. The number is

Decrease : 70 by 40%

A number is decreased by 10% and the resulting number is again decreased by 20%. What is the final percentage of decrease?

A number when increased by 40% becomes 42. What is the number ?