Question : Direction: In the following question, which of the following interchange of signs would make the given equation correct?
(8 – 8) + 8 × 32 = 64
Option 1: ×, +, –
Option 2: –, ÷, +
Option 3: +, ÷, +
Option 4: +, ÷, ×
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Correct Answer: +, ÷, ×
Solution : Given: (8 – 8) + 8 × 32 = 64
Let's check the options —
First option: ×, +, – On replacing → (8 × 8) + 8 – 32 = 64 = (8 × 8) + 8 – 32 = 64 + 8 – 32 = 72 – 32 = 40 ≠ 64
Second option: –, ÷, + On replacing → (8 – 8) ÷ 8 + 32 = 64 = (8 – 8) ÷ 8 + 32 = 0 ÷ 8 + 32 = 0 + 32 = 32 ≠ 64
Third option: +, ÷, + On replacing → (8 + 8) ÷ 8 + 32 = 64 = (8 + 8) ÷ 8 + 32 = 16 ÷ 8 + 32 = 2 + 32 = 34 ≠ 64
Fourth option: +, ÷, × On replacing → (8 + 8) ÷ 8 × 32 = 64 = (8 + 8) ÷ 8 × 32 = 16 ÷ 8 × 32 = 2 × 32 = 64
Hence, the fourth option is correct.
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Question : Directions: Which of the following interchange of signs would make the given equation correct? 5 + 3 × 8 – 12 ÷ 4 = 3
Option 1: – and ÷
Option 2: + and ×
Option 3: + and ÷
Option 4: + and –
Question : Directions: Which of the following interchange of mathematical signs would make the given equation correct? 20 ÷ 4 × 8 + 16 – 15 = 11
Option 2: + and –
Option 3: × and ÷
Option 4: + and ×
Question : Direction: Which of the following interchange of numbers and signs would make the given equation correct? 512 × 64 ÷ 5 + 30 – 50 = 20
Option 1: 50 and 64, + and ×
Option 2: 20 and 30, + and ÷
Option 3: 20 and 50, × and ÷
Option 4: 5 and 20, + and –
Question : Direction: Which of the following interchange of signs would make the given equation correct?
2 × 3 + 6 – 12 ÷ 4 = 17
Option 1: × and +
Option 4: – and ÷
10 + 10 ÷ 10 – 10 × 10 = 10
Option 1: + and –
Option 2: + and ÷
Option 3: + and ×
Option 4: ÷ and ×
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