Question

A stack of 250 sheets of paper is 1.5 cm thick.
i.How thick will be a stack of 400 sheets of the same paper?
ii. How many sheets will be there in a stack 2.7 cm thick?

Answer 1

Answer:

i. 1.5 x 400 = 600

600/250

=2.4

ii. 250 x 2.7 = 675

675/1.5

= 450

Step-by-step explanation:

Answer 2

Given:

A stack of 250 sheets of paper is 1.5 cm thick.

To find:

i. Thickness of a stack of 400 sheets.

ii. Number of sheets in 2.7 cm thick stack.

Solution:

i.

A stack of 250 sheets of paper is 1.5 cm thick.

Thus a stack of 400 sheets of paper is 400×1.5/250=2.4 cm thick.

Thus a stack of 400 sheets of paper is 2.4 cm thick.

ii.

A 1.5 cm thick stack has 250 sheets of paper.

Thus 2.7 cm thick stack has 2.7×250/1.5=450 sheets of paper.

Thus 2.7 cm thick stack has 450 sheets of paper.