Which two numbers, from among the given options, should be interchanged to make the given equation correct?
72 + ( 7 × 8 ) – ( 126 ÷ 14 ) – ( 4 )2 = 150
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 14 and 7.
Given equation: 72 + ( 7 × 8 ) – ( 126 ÷ 14 ) – ( 4 )2 = 150
Option 4: 14 and 7
After interchanging the expression becomes:
72 + (14 × 8 ) – ( 126 ÷ 7 ) – ( 4 )2 = 150
72 + 112 – 18 – 16 = 150
184 – 18 – 16 = 150
150 =150