Question 178

If + means ÷, - means ×, × means + and ÷ means -, then which of the alternatives is correct ?

Solution

If + means ÷, - means ×, × means + and ÷ means - , then :

(A) : 5 × 8 - 5 + 5 ÷ 1 = 12 => 5 + 8 * 5 ÷ 5 - 1

=> 5 + 8 * 1 - 1 = 4 + 8 = 12 = R.H.S.

(B) : 55 - 2 + 10 ÷ 1 x 5 = 16 => 55 * 2 ÷ 10 - 1 + 5

=> 11 + 4 = 15 $$\neq$$ R.H.S.

(C) : 38 ÷ 10 - 5 + 7 x 8 = 25 => 38 - 10 * 5 ÷ 7 + 8

=> 46 - $$\frac{50}{7}$$ = ~39 $$\neq$$ R.H.S.

(D) : 10 - 12 + 2 ÷ 30 x 1 = 10 => 10 * 12 ÷ 2 - 30 + 1

=> 60 - 29 = 31 $$\neq$$ R.H.S.

Ans - (A)


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