Question

Which two numbers should be interchanged to make the given equation correct? (99 − 42 + 11) + (36 ÷ 6) × 7 − 50 = 73 (NOTE: Numbers must be interchanged and not the constituent digits e.g. if 2 and 3 are to be interchanged in the equation 43 × 3 + 4 ÷ 2, then interchanged equation is 43 × 2 + 4 ÷ 3) 

A 50 and 99
B 50 and 11
C 7 and 11
D 42 and 36
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