Practicing Success
If '(+)' stand for the $\div$ , '($\div$)' stand for $\times$ , '($\times $)' stand for - and '(-)' stand for +, which one of the following is correct ? |
$18/6\times 7 + 5 - 2= 22$ $18 \times 6 +7/5-2=16$ $18/6-7+5\times 2=20$ $18+6/7\times 5-2=18$ |
$18+6/7\times 5-2=18$ |
18 + 6 / 7 × 5 − 2 = 18 ; After interchanging signs; 18 \(\div \) 6 x 7 - 5 + 2 = 18 => 3 x 7 - 5 + 2 = 18 => 21 - 5 + 2 = 18 => 16 + 2 = 18 => 18 = 18 LHS = RHS |