WBCS 2021 Mains (General Studies Paper-IV) Prev. Yr. Paper (24-May-2022)

The sum of the first first five multiples of 3 is

If $\cot \theta =\frac{15}{8}$, then what is the value of $\frac{(2+2\sin \theta )(1-\sin \theta )}{(1+\cos \theta )(2-2\cos \theta )}$?

Find the correct figure in which the given figure on the below is embedded. Refer to the file name "image_b95401.png" to view the problem.

Direction: In each question below two problem figures are given. These are followed by four answer figures indicated by (A), (B), (C) and (D). The two problem figures have some common characteristic features. You have to find out one of the answer figures which has the same commonality. The number of that answer figure is the required answer. Refer to the file name "image_b95401.png" to view the figures.

Which of the following is the value of $\frac{231\times 231\times 231-131\times 131\times 131}{231\times 231+231\times 131+131\times 131}$?