Question

6) 37.1% of 480) -(?% of 280)=(12% of
322)​

Answer 1

Answer:

The answer will be 49.8%

Answer 2

Hence, (?) = x = 49.8

Given:- (37.1% of 480) -(?% of 280)=(12% of

322

Find :- (?)

Solution:-

Let (?) be x

By evaluating each bracket

$(37.1\% \: of \: 480) - (x\% \: of \: 280) = (12\% \: of \: 322)$

$37.1\% \: of \: 480 = \frac{37.1}{100} \times 480 \\ = 178.08$

$x\% \: of \: 280 = \frac{x}{100} \times \: 280 \\ = 2.8x$

$12\% \: of \: 322 = \ \frac{12}{100} \times 322 \\ = 38.64$

By putting the values

$178.08 - 2.8x = 38.64$

$178.08 - 38.64 = 2.8x$

$2.8x = 139.44$

$x = \frac{139.44}{2.8 } \\ = 49.8$

Hence, (?) = x = 49.8