Question

Find the number of envelopes that can be made out of a sheet of paper 384 cm by 172 cm, if each envelope requires a piece of paper of size 16 cm by 12 cm.

• A. $340$
• B. $344$
• C. $338$
• D. $342$

Answer 1

The correct option is B $344$

Area of sheet = $(384\times 172)c{m}^2$
= $66048c{m}^2$
Area of paper for 1 envelope
= $(16\times 12)c{m}^2=192c{m}^2$
$\therefore$ Number of envelopes can be made
= $\frac{66048}{192}=344$