Question

A person made 165 telephone calls in the month of May in a year It was Friday on 1st May of the year The average of telephone calls on Sundays of the months was 7 What was the average of the telephone calls per day on the rest days of the months

• A. $\frac{165}{31}$
• B. $5$
• C. $7$
• D. $\frac{137}{27}$

Answer 1

The correct option is B $5$

Since it was a Friday on 1st May of the year
there are $5$ Sundays in that month, 3rd, 10th, 17th,
24th, and 31st
$\therefore$ Number of telephone calls on Sundays
$=7x5=35$
$\therefore$ Remaining number of telephone calls
$=165-35=130$
Required average = $\frac{130}{26}=5$