Question

The
cost of one book is Rs. 120 and the cost of
one notebook is Rs. 15. What will be the total
cost of 3 books and 5 notebooks if a discount of
10% is applicable on the total cost of all the
items purchased?​

Answer 1

cost of 3 book =3*120=360

cost of 5 note book =5*15=75

360+75=435

10% of 435 =43.5

hence...

435-43.5=391.5