Question

280 sheets of paper are 4cm thick.
a. How thick would 630 of these sheets be?
b. How many sheets would be 2.7cm thick?

Answer 1

Answer:

a. 9 cm thick

b. 189 sheets

Explanation:

a. 280 sheets = 4cm thick and 630 sheets = ? cm thick

using unitary method

280 x = 4 × 630

x = 9cm

b. 280 sheets = 4cm thick and ? sheets = 2.7 cm thick

using unitary method

280 × 2.7 = 4 x

x = 189 sheets