After interchanging the given two numbers and two signs what will be the values of equations (I) and (II) respectively?
– and ×, 6 and 4
I. 7 × 6 + 8 ÷ 2 – 4
II. 4 – 7 × 6 + 8 ÷ 2
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 27, 42.
Given conditions: – and ×, 6 and 4
After interchanging the expression becomes:
I. 7 × 6 + 8 ÷ 2 – 4
= 7 - 4 + 8 ÷ 2 × 6
= 7 - 4 + 4 × 6 = 27
II. 4 – 7 × 6 + 8 ÷ 2
= 6 × 7 - 4 + 8 ÷ 2
= 6 × 7 - 4 + 4 = 42