Section C: Quantitative Ability

70. How many whole numbers between 100 and 800 contain the digit 2?

A. 200

B. 214

C. 220

D. 240

E. 248

Solution:

Each of the ranges 100 – 199, 300 – 399, 400 – 499, 500 – 599, 600 – 699, 700 – 799 has 19 (19 = 10 + 10 – 1) numbers with 2 as one of the digits.

In the range 200 – 299, 100 numbers have 2 as one of the digits.

Total number of numbers = 100 + 19(6) = 214. Choice (B)