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State PCS PYQPrelims 2024

BPSC – Combined Competitive Examination · Question 62

If ÷ means +, − means ÷, × means − and + means ×, then the value of [(36 × 4) − 8 × 4] / [4 + 8 × 2 + 16 ÷ 1] is:

  1. 10
  2. 0
  3. 12
  4. 8
Show answer & explanation

Answer: (B) 0

Explanation

After substitution the numerator is 4 − 4 = 0 and the denominator 32 − 32 + 1 = 1, giving 0.

  • (A) Incorrect

    Wrong: the numerator works out to 0.

  • (B) Correct

    Correct: numerator: (36 − 4) ÷ 8 − 4 = 0; denominator: 4 × 8 − 2 × 16 + 1 = 1; so 0/1 = 0.

  • (C) Incorrect

    Wrong: the numerator is 0.

  • (D) Incorrect

    Wrong: the numerator is 0.