Question

A man.spend 80 %of his income and income is increased by 20%and expenses10%then change in saving

Answer 1

let Income be x

expenses before increment will be 0.8x

savings before increment will be 0.2x

income after increment will now be 1.2x

expenses after increment will be 1.2x(0.8-0.1)

                                                      0.84x

saving will now be 1.2x-0.84x

                               0.36x