Question : Directions: Which two signs should be interchanged to make the given equation correct?
6 = 9 ÷ 3 – 2 + 7
Option 1: = and –
Option 2: + and ÷
Option 3: – and +
Option 4: + and =
Correct Answer: + and =
Solution :
Given:
6 = 9 ÷ 3 – 2 + 7
Interchange the signs according to options.
First option:
= and –
6 – 9 ÷ 3 = 2 + 7
6 – 3 = 9
3
≠ 9
Second option:
+ and ÷
6 = 9 + 3 – 2 ÷ 7
= 9 + 3 – 0.285
6 ≠ 11.715
Third option:
– and +
6 = 9 ÷ 3 + 2 – 7
= 3 + 2 – 7
6
≠ –2
Fourth option:
+ and =
6 + 9 ÷ 3 – 2 = 7
6 + 3 – 2 = 7
7 = 7.
So, only the fourth option satisfies the given equation. Hence, the fourth option is correct.
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