Of the following five statements, how many are correct?
(i) $20 \%$ of $40=8$
(ii) $2^{3}=8$
(iii) $7-3 \times 2=8$
(iv) $3^{2}-1^{2}=8$
(v) $2(6-4)^{2}=8$
(A) 1
(B) 2
(C) 3
(D) 4
(E) 5
Of the following five statements, how many are correct?
(i) $20 \%$ of $40=8$
(ii) $2^{3}=8$
(iii) $7-3 \times 2=8$
(iv) $3^{2}-1^{2}=8$
(v) $2(6-4)^{2}=8$
(A) 1
(B) 2
(C) 3
(D) 4
(E) 5

Solution

(i) True, $\frac{1}{5} \times 40=8$

(ii) True, $2^{3}=2 \times 2 \times 2=8$

(iii) False, $7-3 \times 2=7-6=1$

(iv) True, $9-1=8$

(v) True, $2(2)^{2}=8$

Only (iii) is false. There are four correct statements.

ANSwER: (D)