By Interchanging the given two numbers which of the following equation will be correct?
1 and 6
I. 7 - 5 + 1 x 3 ÷ 6 = 20
II. 1 x 7 + 6 - 4 ÷ 2 = 40
Answer & explanation
Correct answer: option 1
In the first equation, 7 - 5 + 1 x 3 ÷ 6 = 20
interchanging 1 and 6,
The equation becomes 7 - 5 + 6 x 3 ÷ 1 = 20
The equation is correct, i.e. LHS = RHS
BY interchanging in the second equation : 1 x 7 + 6 - 4 ÷ 2 = 40
The equation becomes 6 x 7 + 1 - 4 ÷ 2 = 40
Here, LHS = 41 and RHS = 40
Thus, interchanging does not make the equation correct.