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Question

If $\frac{5}{7}$ of 49 + 20% of 130 = x + 49 then x = ..........
16
18
10
12

A

16

B

12

C

10

D

18

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Solution

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$\frac{5}{7} \times 49 + \frac{20}{100} \times 130 = x + 49$
$35 + 26 = x + 49$
$x = 61 - 49 = 12$

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