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: +, ×, ÷, =
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Correct Answer: +, ×, ÷, =
Solution : Given: 50 * 25 * 10 * 2 * 175
Replacing the given symbols in the equations – First option: +, ÷, x, = ⇒ 50 + 25 ÷ 10 x 2 = 175 ⇒50 + 2.5 x 2 = 175 ⇒50 + 5 = 175 ⇒55 = 175 ⇒ L.H.S ≠ R.H.S Second option: –, x, ÷, = ⇒ 50 – 25 x 10 ÷ 2 = 175 ⇒ 50 – 25 x 5 = 175 ⇒ 50 – 125 = 175 ⇒ – 75 = 175 ⇒ L.H.S ≠ R.H.S Third option: –, x, +, = ⇒ 50 – 25 x 10 + 2 = 175 ⇒ 50 – 250 + 2 = 175 ⇒ 50 – 248 = 175 ⇒ – 198 = 175 ⇒ L.H.S ≠ R.H.S Fourth option: +, x, ÷, = ⇒ 50 + 25 x 10 ÷ 2 = 175 ⇒ 50 + 25 x 5 = 175 ⇒ 50 + 125 = 175 ⇒ 175 = 175 ⇒ L.H.S = R.H.S
So, only the fourth option satisfies the given equation. Hence, the fourth option is correct.
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Question : Directions: Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation. 50 * 10 * 20 * 5 * 105
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. 11 * 3 * 11 * 2 * 9 = 10
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. 99 * 33 * 66 * 22 * 44 * 50
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. 30 * 4 * 2 * 1 * 121
Option 1: ×, +, −, =
Option 2: ×, −, ÷, =
Option 3: ×, −, +, =
Option 4: ÷, +, −, =
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