SSC GD 2021 PYQ — Question 79

SSC GD Constable (English) - 17th November 2021 Shift 3 • Reasoning • Q79

If ‘P’ denotes ‘addition’, ‘D’ denotes ‘subtraction’, ‘S’ denotes ‘multiplication’, and ‘V’ denotes ‘division’, then what will be the value of the following expression?

15 S 2 P 2 (11 S 2) D 75 V 15 D 4 (9 S 4)

Show answer & explanation

Correct answer: A

Explanation

The correct answer is option 1 i.e. -75.

Given equation: 15 S 2 P 2 (11 S 2) D 75 V 15 D 4 (9 S 4)

Given conditions:

P ⇒ +

S ⇒ ×

V ⇒ ÷

D ⇒ -

After interchanging the expression becomes:

= 15 × 2 + 2 (11 × 2) - 75 ÷ 15 - 4 (9 × 4)

= 15 × 2 + 2 (22) - 75 ÷ 15 - 4 (36)

= 15 × 2 + 44 - 75 ÷ 15 - 144

= 15 × 2 + 44 - 5 - 144

= 30 + 44 - 5 - 144

= -75

Hence, option 1 is the correct answer.