Question

If 11 printers can print 22 pages in a second, then find the number of pages printed by 5 such printers in a second.

• A. 10 pages
• B. 12 pages
• C. 16 pages
• D. 20 pages

Answer 1

The correct option is A 10 pages

The number of pages (P) printed in a second is directly proportional to the number of printers (N) used.

$\Rightarrow P\propto N$

Let the constant of variation be k.
$\Rightarrow P=kN$

Given, when P = 22, N = 11.
So, $k=\frac{P}{N}=\frac{22}{11}=2.$

Hence, the number pages (P) printed in a second by 5 such printers = kN = (2)(5) = 10 pages.