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Which two numbers, from amongst the given options, should be interchanged to make the given equation correct?
72 + ( 7 × 8 ) – ( 126 ÷ 14 ) – ( 4 )2 = 150
A. 72 and 126
B. 7 and 4
C. 8 and 4
D. 14 and 7
Sol:
Given
72 + ( 7 × 8 ) – ( 126 ÷ 14 ) – ( 4 )2 = 150
Interchange 14 and 7
72 + ( 14 × 8 ) – ( 126 ÷ 7 ) – ( 4 )2
=72+112-18-16
=150