Select the number that will come in the place of the question mark(?), if ‘+’ and ‘ – ‘ are interchanged and ‘×’ and ‘÷’ are interchanged?
42 × 7 ÷ 13 – 67 + 13 = ?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 132.
Given: 42 × 7 ÷ 13 – 67 + 13 = ?
When +’ and ‘ – ‘ are interchanged and ‘×’ and ‘÷’ are interchanged, then
42 ÷ 7 × 13 + 67 – 13 = ?
= 6 × 13 + 67 – 13
= 78 + 67 – 13
= 145 – 13
= 132