You can buy 16 pens for y Taka. How many pens can you buy for z Taka If the price of the pen is reduced by 20%?

You can buy 16 pens for y Taka. How many pens can you buy for z Taka If the price of the pen is reduced by 20%?

A 20z/y

B 80y/2

C 20y/z

D (20yz)/16

Solution

Correct Answer: Option A

16 টি কলমের বর্তমান মূল্য =8y/10 টাকা

8y/10 টাকায় 16 টি

1 টাকায় 16×10/8y টি

z টাকায় 16×10/8y×z টি = 20z/y