Exams › SSC CGL (Prelims) › General

What is the average of all numbers between 2000 and 2400 that are divisible by 50?

1. 2200
2. 2175
3. 2250
4. 2300

Correct answer: 2200

Solution

The numbers divisible by 50 between 2000 and 2400 are 2000, 2050, ..., 2400. Since they form an arithmetic progression, their average is the average of the first and last terms: (2000 + 2400)/2 = 2200.

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