SSC GD 2023 PYQ — Question 51

SSC GD Constable (English) - 24 Jan 2023 - Shift 3 • Quantitative Aptitude • Q51

A park had an average of 30 children playing on weekdays and an average of 60 children playing on weekends. Find the average number of children playing per day in the park for June beginning with a Saturday.

Show answer & explanation

Correct answer: C

Explanation

The correct answer is Option 3 i.e. 40.

We know that,

Average = Sum of observations/Number of observations

According to the given question,

If the week starts with Saturday, the number of Saturdays in one month is 5

And, the number of days in weekends of a month = 10 days (Saturday + Sunday)

Total number of children on weekends = 10 × 60 = 600

The number of weekdays(excluding weekends) = 30 - 10 = 20 days

Total number of children on weekdays = 20 × 30 = 600

Total number of children in one month = 600 + 600 = 1200

Now,

The average number of children in one month = 1200301200 \over 30 = 40