Repeated percentage decrease

Maths

Which two decimals would decrease an amount by 10%, followed by 20%?

A decrease of 30%, then a decrease of 50%

A decrease of 70%, then a decrease of 50%

What could a multiplication of 0.7 followed by a multiplication of 0.5 represent?

Which two decimals would increase an amount by 10%, followed by 5%?

An increase of 0.3%, then an increase of 4.5%

An increase of 3%, then an increase of 4.5%

An increase of 3%, then an increase of 45%

An increase of 30%, then an increase of 45%

What could a multiplication of 1.03 followed by a multiplication of 1.45 represent?