Question : Directions: In the following question you have to identify the correct response from the given premises stated according to the following symbols: Select the set of symbols that can be fitted correctly in the equation. 5....3....8....4....2 = 21
Option 1: +, ×, +, ÷
Option 2: ×, +, –, ÷
Option 3: –, ×, +, ÷
Option 4: +, ×, –, ÷
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Correct Answer: ×, +, –, ÷
Solution : Given: 5....3....8....4....2 = 21
Let's check the options – First option: +, ×, +, ÷ ⇒ 5 + 3 × 8 + 4 ÷ 2 = 21 On solving the L.H.S. of the equation, we get – = 5 + 3 × 8 + 2 = 5 + 24 + 2 = 31 ≠ 21 Second option: ×, +, –, ÷ ⇒ 5 × 3 + 8 – 4 ÷ 2 = 21 On solving the L.H.S. of the equation, we get – = 5 × 3 + 8 – 2 = 15 + 8 – 2 = 23 – 2 = 21 Third option: –, ×, +, ÷ ⇒ 5 – 3 × 8 + 4 ÷ 2 = 21 On solving the L.H.S. of the equation, we get – = 5 – 3 × 8 + 2 = 5 – 24 + 2 = –17 ≠ 21 Fourth option: +, ×, –, ÷ ⇒ 5 + 3 × 8 – 4 ÷ 2 = 21 On solving the L.H.S. of the equation, we get – = 5 + 3 × 8 – 2 = 5 + 24 – 2 = 27 ≠ 21
Hence, the second option is correct.
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