Question

Sachin scored 70 and 75 runs in the first two matches. Plot the minimum runs he should score in the third match on a number line so that he should have an average greater than 60 runs.

• A.
• B.
• C.
• D.

Answer 1

The correct option is B

Let the number of runs scored by Sachin in the third match be $x$.

Given: The average should be greater than 60.
$\because$ Average $=\frac{70+75+x}{3}=\frac{145+x}{3}$

$\Rightarrow \frac{145+x}{3}>60\Rightarrow 145+x>180\Rightarrow x>35$

The numbers greater than 35 are plotted to the right of 35 on a number line.