Question : Directions: Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation. 7 * 5 * 4 * 2 * 3 * 7
Option 1: ÷, –, +, ×, =
Option 2: +, –, ÷, –, =
Option 3: ÷, +, ÷, +, =
Option 4: –, ÷, +, ×, =
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Correct Answer: +, –, ÷, –, =
Solution : Given: 7 * 5 * 4 * 2 * 3 * 7
Let's check the given options – First option: ÷, –, +, ×, = ⇒ 7 ÷ 5 – 4 + 2 × 3 = 7 Solving the L.H.S. of the equation – = 1.4 – 4 + 2 × 3 = 1.4 – 4 + 6 = 7.4 – 4 = 3.4 ≠ 7 Second option: +, –, ÷, –, = ⇒ 7 + 5 – 4 ÷ 2 – 3 = 7 Solving the L.H.S. of the equation – = 7 + 5 – 2 – 3 = 12 – 5 = 7 = R.H.S. Third option: ÷, +, ÷, +, = ⇒ 7 ÷ 5 + 4 ÷ 2 + 3 = 7 Solving the L.H.S. of the equation – = 1.4 + 2 + 3 = 6.4 ≠ 7 Fourth option: –, ÷, +, ×, = ⇒ 7 – 5 ÷ 4 + 2 × 3 = 7 Solving the L.H.S. of the equation – = 7 – 1.25 + 2 × 3 = 7 – 1.25 + 6 = 13 – 1.25 = 11.75 ≠ 7
So, only the second option satisfies the given equation. Hence, the second 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. 42 * 7 * 5 * 5 * 40 * 5
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. 17 * 21 * 7 * 5 * 4 * 34
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. 35 * 5 * 7 * 2 * 19 = 42
Option 1: ×, ÷, –, +
Option 2: ÷, ×, +, +
Option 3: +, –, +, –
Option 4: ÷, ×, –, –
Question : Directions: Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation. 96 * 3 * 7 * 4 * 11 = 15
Option 1: ×, +, ÷, –
Option 2: ×, ÷, –, +
Option 3: +, ÷, ×, –
Option 4: ÷, –, ×, +
Question : Directions: Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation. 32 * 42 * 7 * 7 * 17 = 202
Option 2: ×, –, +, ÷
Option 4: +, ×, ÷, –
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