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Question : Directions: Select the correct combination of mathematical signs to replace * signs and to balance the following equation: 
8 * 8 * 1 * 7 = 8

Option 1: ×, ÷, +

Option 2: +, ÷, ×

Option 3: ÷, ×, +

Option 4: +, ×, ÷


Team Careers360 2nd Jan, 2024
Answer (1)
Team Careers360 23rd Jan, 2024

Correct Answer: ÷, ×, +


Solution : Given:
8 * 8 * 1 * 7 = 8

Let's check the options –
First option: ×, ÷, +
⇒ 8 × 8 ÷ 1 + 7 = 8
Solving the L.H.S. of the equation –
= 8 × 8 ÷ 1 + 7
= 8 × 8 + 7
= 64 + 7 
= 71 ≠ 8
Second option: +, ÷, ×
⇒ 8 + 8 ÷ 1 × 7 = 8
Solving the L.H.S. of the equation –
= 8 + 8 ÷ 1 × 7
= 8 + 8 × 7 
= 8 + 56
= 64 ≠ 8
Third option: ÷, ×, +
⇒ 8 ÷ 8 × 1 + 7 = 8
Solving the L.H.S. of the equation –
= 8 ÷ 8 × 1 + 7
= 1 × 1 + 7
= 1 + 7
= 8 = R.H.S.
Fourth option: +, ×, ÷
⇒ 8 + 8 × 1 ÷ 7 = 8
Solving the L.H.S. of the equation –
= 8 + 8 × 1 ÷ 7
= 8 + 8 × 0.14
= 8 + 1.14 
= 9.14 ≠ 8

So, only the third option satisfies the R.H.S. of the given equation. Hence, the third option is correct.

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