Reasoning Aptitude
MATHEMATICAL OPERATIONS MCQs
Total Questions : 54
Page 1 of 6 pages Answer is Option C. -> 19 ÷ 5 + 4 – 2 x 4 = 13
Answer: (c) - ⇒ ÷, + ⇒ x, ÷ ⇒ x, - ⇒ +, From option (a), 19 + 5 - 4 x 2 ÷ 4 = 11 ⇒ 19 x 5 ÷ 4 + 2 - 4 = 11 ⇒ 95/4 + 2 - 4 ≠ 11 From option (b), 19 x 5 - 4 ÷ 2 + 4 = 16 ⇒ 19 + 5 ÷ 4 - 2 x 4 = 16 ⇒ 19 + 5/4 - 8 ≠ 16 From option (c), 19 ÷ 5 + 4 - 2 x 4 = 13 ⇒ 19 - 5 x 4 ÷ 2 + 4 = 13 ⇒ 19 - 5 x 2 + 4 = 13 ⇒ 19 - 10 + 4 = 13 Therefore 13 = 13 As,we got our answer, there is no need to check option (d).
Answer: (c) - ⇒ ÷, + ⇒ x, ÷ ⇒ x, - ⇒ +, From option (a), 19 + 5 - 4 x 2 ÷ 4 = 11 ⇒ 19 x 5 ÷ 4 + 2 - 4 = 11 ⇒ 95/4 + 2 - 4 ≠ 11 From option (b), 19 x 5 - 4 ÷ 2 + 4 = 16 ⇒ 19 + 5 ÷ 4 - 2 x 4 = 16 ⇒ 19 + 5/4 - 8 ≠ 16 From option (c), 19 ÷ 5 + 4 - 2 x 4 = 13 ⇒ 19 - 5 x 4 ÷ 2 + 4 = 13 ⇒ 19 - 5 x 2 + 4 = 13 ⇒ 19 - 10 + 4 = 13 Therefore 13 = 13 As,we got our answer, there is no need to check option (d).
Answer is Option D. -> 97
Answer: (d) According to the question, ? = 12 + (3 × 1) + 4 - 1 from the question by changing the symbols, we get = 12 × (3 - 1) × 4 + 1 (using VBODMAS rule) = 12 × 2 × 4 + 1 = 96 + 1 = 97
Answer: (d) According to the question, ? = 12 + (3 × 1) + 4 - 1 from the question by changing the symbols, we get = 12 × (3 - 1) × 4 + 1 (using VBODMAS rule) = 12 × 2 × 4 + 1 = 96 + 1 = 97
Answer is Option A. -> 30 – 6 + 5 x 4 ÷2 = 27
Answer: (a) - ⇒ ÷, + ⇒ x, ÷ ⇒ x, - ⇒ +, From option (a), 30 - 6 + 5 x 4 ÷ 2 = 27 ⇒ 30 ÷ 6 x 5 + 4 - 2 = 27 ⇒ 5 x 5 + 4 - 2 = 27 ⇒ 25 + 4 - 2 = 27 Therefore 27 = 27
Answer: (a) - ⇒ ÷, + ⇒ x, ÷ ⇒ x, - ⇒ +, From option (a), 30 - 6 + 5 x 4 ÷ 2 = 27 ⇒ 30 ÷ 6 x 5 + 4 - 2 = 27 ⇒ 5 x 5 + 4 - 2 = 27 ⇒ 25 + 4 - 2 = 27 Therefore 27 = 27
Answer is Option B. -> 5
Answer: (b) According to the question, ? = 5 C 5 D 5 A 5 B 5 from the question by changing the symbols, we get = 5 × 5 ÷ 5 + 5 - 5 (using VBODMAS rule) = 5 × 1 + 5 - 5 = 10 - 5 = 5
Answer: (b) According to the question, ? = 5 C 5 D 5 A 5 B 5 from the question by changing the symbols, we get = 5 × 5 ÷ 5 + 5 - 5 (using VBODMAS rule) = 5 × 1 + 5 - 5 = 10 - 5 = 5
Answer is Option A. -> 9
Answer: (a) According to the question, ? = 54 ÷ 16 - 3 × 6 + 2 from the question by changing the symbols, we get = 54 - 16 × 3 + 6 ÷ 2 (using VBODMAS rule) = 54 - 16 × 3 + 3 = 54 - 48 + 3 = 6 + 3 = 9
Answer: (a) According to the question, ? = 54 ÷ 16 - 3 × 6 + 2 from the question by changing the symbols, we get = 54 - 16 × 3 + 6 ÷ 2 (using VBODMAS rule) = 54 - 16 × 3 + 3 = 54 - 48 + 3 = 6 + 3 = 9
Answer is Option C. -> 25 – 15 + 5 ÷ 4 × 16 = 21
Answer: (c) From option (c), 25 + 15 ÷ 5 × 4 - 16 = 21 (using VBODMAS rule) ⇒ 25 + 3 × 4 - 16 = 21 ⇒ 25 + 12 - 16 = 21 ⇒ 37 - 16 = 21 ⇒ 21 = 21 LHS = RHS So, option (c) is correct.
Answer: (c) From option (c), 25 + 15 ÷ 5 × 4 - 16 = 21 (using VBODMAS rule) ⇒ 25 + 3 × 4 - 16 = 21 ⇒ 25 + 12 - 16 = 21 ⇒ 37 - 16 = 21 ⇒ 21 = 21 LHS = RHS So, option (c) is correct.
Answer is Option C. -> 48
Answer: (c) Using the correct symbols, we have: Given expression = 15 x 3- 10 ÷ 5 + 5 (using VBODMAS rule) = 45 - 2 + 5 = 50 - 2 = 48.
Answer: (c) Using the correct symbols, we have: Given expression = 15 x 3- 10 ÷ 5 + 5 (using VBODMAS rule) = 45 - 2 + 5 = 50 - 2 = 48.
Answer is Option E. -> None of these
Answer: (e) Using the correct symbols, we have: Given expression as = 27+ 81 ÷ 9 – 6 = 27 + 9 - 6 = 36 - 6 = 30.
Answer: (e) Using the correct symbols, we have: Given expression as = 27+ 81 ÷ 9 – 6 = 27 + 9 - 6 = 36 - 6 = 30.
Answer is Option B. -> 27
Answer: (b) Using the correct symbols, we have: Given expression = 16 + 4 x 5 - 72 ÷ 8 = 16+ 20 - 9 = 36 –9 = 27.
Answer: (b) Using the correct symbols, we have: Given expression = 16 + 4 x 5 - 72 ÷ 8 = 16+ 20 - 9 = 36 –9 = 27.
Answer is Option B. -> 2
Answer: (b) Using the correct symbols, we have: Given expression = (3 x 15 + 19) ÷ 8 - 6 = 64 ÷ 8 - 6 = 8 - 6 = 2.
Answer: (b) Using the correct symbols, we have: Given expression = (3 x 15 + 19) ÷ 8 - 6 = 64 ÷ 8 - 6 = 8 - 6 = 2.
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