SSC CHSL 2021 · PYQ · Mathematical Operations · medium
Select the correct combination of mathematical signs to sequentially replace the * signs to balance the following equation.
40 * 15 * 3 * 72 * 9 = 77
- A.×, ÷, +, –, =
- B.+, ÷, –, ×, =
- C.+, ×, –, ÷, =
- D.+, ×, ÷, –, =✓ Correct
Replacing * signs with +, ×, ÷, –, = gives: 40 + 15 × 3 ÷ 72 – 9 = 77. Following BODMAS: 15 × 3 = 45, 45 ÷ 72 is not clean. Re-checking option (a): 40 + 15 × 3 – 72 ÷ 9 = 40 + 45 – 8 = 77. This satisfies the equation.
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