Question

the printed price of a book is 150 rupees and discount is 15% find the actual amount to be paid

Answer 1

Actual amount to be paid is=
100-15/100*150=127.5

Answer 2

MP =150
Discount =15 percent
So,
first discount = 15/100*150
=45/2
=22.5
now sp to be paid =150-22.5
=127.5