If P = +, Q = −, R = ×, S = ÷, then insert the proper notations between the successive numbers in the equation 60 15 3 20 4 = 20:

Mental Ability & Logical Reasoning ·Previously asked in UPSC Civil Services Examination 2025

View the full solved paper: GS Paper II

Question

If P = +, Q = −, R = ×, S = ÷, then insert the proper notations between the successive numbers in the equation 60 15 3 20 4 = 20:

  1. A. SPRQ
  2. B. QRPS (Correct answer)
  3. C. QRSP
  4. D. SPQR

Correct Answer

Option B — QRPS

Detailed Solution & Explanation

The correct answer is QRPS.

Key Points

  • P=+, Q=−, R=×, S=÷.
  • Equation: 60_15_3_20_4=20. Try QRPS: 60−15×3+20÷4 = 60−45+20÷4 = 60−45+5 = 20. ✓ Answer: QRPS.