Simplification Ques 14
Question-
? $\%$ of $280+18 \%$ of $550=143.8$
(1) 11
(2) 18
(3) 21
(4) 16
(5) None of these
Show Answer
Correct Answer: (4)
Solution: (4)
$\frac{280 \times ?}{100}+\frac{550 \times 18}{100}=143.8$
$\Rightarrow 280 \times ?+9900=143.8 \times 100$
$=14380$
$\Rightarrow 280 \times ?=14380-9900$
$=4480$
$\therefore ?=\frac{4480}{280}=16$
BETA
