Question

If a sprinter takes $40$ steps in $11$ seconds. How many steps does he take in $55$ seconds ?

• A. $173$
• B. $180$
• C. $190$
• D. $200$

Answer 1

The correct option is D $200$

This is a direct proportionality problem.
The principle is that the more the time, the more steps will be taken by the sprinter.
Applying the principle,we get
$\frac{40}{11}=\frac{x}{55}$
where x is the number of steps.
$\therefore x=\frac{40\times 55}{11}$
$=40\times 5$
$=200$ steps.