Question

Eddie can type 9 pages of a book in 40 minutes. If he keeps typing at the current pace, then how many pages can he type in 2 hours?

• A. 23
• B. 21
• C. 27
• D. 25

Answer 1

The correct option is C 27

Eddie can type $9$ pages in $40$ minutes.
Then, let Eddie type $x$ pages in 2 hours or 120 minutes.

We can represent it in a form of proportion.

$\Rightarrow 9:40::x:120$

$\Rightarrow \frac{9}{40}=\frac{x}{120}$

Using cross multiplication

$\Rightarrow 9\times 120=40\times x$

$\Rightarrow \frac{9\times 120}{40}=x$

$\Rightarrow x=9\times 3=27$ pages

Hence, Eddie can type 27 pages in 2 hours.