After interchanging the given two signs what will be the values of expression (I) and (II) respectively?
+ and -
I. 45 + 15 × 30 ÷ 10 - 25
II. 6 × 9 + 5 - 8 ÷ 4
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 25 and 51.
Given signs: + and -
I. 45 + 15 × 30 ÷ 10 - 25
After interchanging the given two signs:
45 - {15 × (30 ÷ 10)} + 25
45 - 45 + 25 = 25
II. 6 × 9 + 5 - 8 ÷ 4
After interchanging the given two signs:
(6 × 9) - 5 + (8 ÷ 4)
54 - 5 + 2 = 51