After interchanging the given two numbers and two signs what will be the values of equations (I) and (II) respectively?
+ and ×, 5 and 4
I. 4 + 6 × 5 – 7 ÷ 1
II. 5 × 3 – 4 + 8 ÷ 2
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 27, –13.
Given conditions: + and ×, 5 and 4
After interchanging the expression becomes:
I. 4 + 6 × 5 – 7 ÷ 1
= 5 × 6 + 4 – 7 ÷ 1
= 5 × 6 + 4 – 7 = 27
II. 5 × 3 – 4 + 8 ÷ 2
= 4 + 3 – 5 × 8 ÷ 2
= 4 + 3 – 5 × 4 = -13