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Question : Directions: Which two numbers should be interchanged, to make the given equation correct?
4 × 8 – 12 + 5 = 16

Option 1: 4 and 5

Option 2: 8 and 5

Option 3: 16 and 8

Option 4: 12 and 16


Team Careers360 24th Jan, 2024
Answer (1)
Team Careers360 25th Jan, 2024

Correct Answer: 8 and 5


Solution : Given:
4 × 8 – 12 + 5 = 16

Replace the given numbers in the options one by one with the original numbers in the given equation.
First option: 4 and 5
4 × 8 – 12 + 5 = 16
= 5 × 8 – 12 + 4 = 16
= 40 – 12 + 4
= 32 16
Second option: 8 and 5
4 × 8 – 12 + 5 = 16
= 4 × 5 – 12 + 8 = 16
= 20 – 12 + 8
= 16
Third option: 16 and 8
4 × 8 – 12 + 5 = 16
= 4 × 16 – 12 + 5 = 8
= 64 – 12 + 5
= 57 8
Fourth option: 12 and 16
4 × 8 – 12 + 5 = 16
= 4 × 8 – 16 + 5 = 12
= 32 – 16 + 5
= 21 12

So, only the second option satisfies the condition. Hence, the second option is correct.

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