NAT MCQs

The extreme value 48 pulls the mean upward.
The median is resistant to the outlier and better represents the center.

The weighted total is 1×2 + 2×3 + 3×5 = 23.
There are 10 observations, so the mean is 2.3.

Pie-chart size is proportional to sector angle.
The largest angle, 108°, represents the largest part.

The six-month total is 6 × 80 = 480 mm.
The missing month is 480 - 370 = 110 mm.

The total is 400 people.
Males represent 240/400 × 100 = 60%.

The increase is 25 on a base of 125.
Thus, 25/125 × 100 = 20%.

The two largest shares are 35% and 25%.
Their combined share is 60%.

The digit sum of 568 is 19, which leaves remainder 1 when divided by 9.
Adding 8 makes the digit sum 27, divisible by 9.

Total expenses are Rs. 100,000.
Salaries are Rs. 50,000, which is 50% of the total.

The largest two-digit multiple of 7 is 7 × 14.
This equals 98.

A 76 average over 5 tests requires 380 total marks.
The first four total 300, so 80 more marks are needed.

The LCM uses prime powers 2³, 3, and 5.
Their product is 8 × 3 × 5 = 120.