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Question : Directions: By interchanging the given two numbers (not digits) which of the following equations will not be correct?
5 and 6

Option 1: 6 × 8 – 5 × 4 = 16

Option 2: 5 × 2 – 4 + 6 = 13

Option 3: 5 – 3 × 6 + 4 = –3

Option 4: 6 – 5 + 2 = 1


Team Careers360 18th Jan, 2024
Answer (1)
Team Careers360 24th Jan, 2024

Correct Answer: 5 – 3 × 6 + 4 = –3


Solution : Given:
5 and 6

Let's check the options –
First option: 6 × 8 – 5 × 4 = 16
On interchanging the numbers, we get –
= 5 × 8 – 6 × 4
= 40 – 24
= 16
Second option: 5 × 2 – 4 + 6 = 13
On interchanging the numbers, we get –
= 6 × 2 – 4 + 5
= 12 – 4 + 5
= 13
Third option: 5 – 3 × 6 + 4 = –3
On interchanging the numbers, we get –
= 6 – 3 × 5 + 4
= 6 – 15 + 4
= –5 ≠ –3
Fourth option: 6 – 5 + 2 = 1
On interchanging the numbers, we get –
= 5 – 6 + 2
= 1

Hence, the third option is correct.

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