By interchanging the given two signs, which of the following equations will be correct?
+ and –
I. 11 – 16 × 3 ÷ 4 + 12 = 11
II. 15 × 3 – 45 ÷ 5 + 30 = 28
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3, i.e., Only I.
I. 11 – 16 × 3 ÷ 4 + 12 = 11
11 + 16 × 3 ÷ 4 - 12 = 11
11 + 12 - 12 = 11
11 = 11 (Follows)
II. 15 × 3 – 45 ÷ 5 + 30 = 28
15 × 3 + (45 ÷ 5) - 30 = 28
45 + 9 - 30 = 28
15 + 9 = 28
24 = 28 (Does not follow)