Question : Directions: Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation. 11 * 3 * 11 * 2 * 9 = 10
Option 1: ×, ÷, −, +
Option 2: ÷, ×, −, +
Option 3: ÷, +, −, ×
Option 4: ×, ÷, +, −
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Correct Answer: ×, ÷, −, +
Solution : Given: 11 * 3 * 11 * 2 * 9 = 10
Replace * with the mathematical signs and solve the equation one by one using the BODMAS rule.
Let's check the given options – First option: ×, ÷, −, + ⇒ 11 × 3 ÷ 11 − 2 + 9 = 10 Solving the L.H.S of the equation – = 3 − 2 + 9 = 10 L.H.S. = R.H.S. Second option: ÷, ×, −, + ⇒ 11 ÷ 3 × 11 − 2 + 9 = 10 Solving the L.H.S of the equation – = 40.34 − 2 + 9 = 47.34 ≠ 10 Third option: ÷, +, −, × ⇒ 11 ÷ 3 + 11 − 2 × 9 = 10 Solving the L.H.S of the equation – = 3.67 + 11 − 18 = −3.33 ≠ 10 Fourth option: ×, ÷, +, − ⇒ 11 × 3 ÷ 11 + 2 − 9 = 10 Solving the L.H.S of the equation – = 11 + 2 − 9 = 4 ≠ 10
So, only the first option satisfies the given equation. Hence, the first option is correct.
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Question : Directions: Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation. 11 * 7 * 345 * 5 * 31 = 115
Option 1: +, ×, ÷, −
Option 2: ×, +, ÷, −
Option 3: ÷, ×, +, −
Option 4: ÷, −, +, ×
Question : Directions: Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation. 21 * 3 * 36 * 2 * 23 = 68
Option 1: ÷, −, ×, +
Option 2: ÷, ×, +, −
Option 3: +, ×, −, ÷
Option 4: ×, −, ÷, +
Question : Directions: Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation. 50 * 25 * 10 * 2 * 175
Option 1: +, ÷, ×, =
Option 2: −, ×, ÷, =
Option 3: −, ×, +, =
Option 4: +, ×, ÷, =
Question : Directions: Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation. 33 * 4 * 15 * 3 * 61 = 188
Option 2: ×, −, ÷, +
Option 3: +, −, ÷, ×
Option 4: ÷, ×, −, +
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Option 1: ÷, ×, +, =
Option 2: ×, −, +, =
Option 3: ÷, ×, −, =
Option 4: ×, ÷, +, =
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