Question

A number increased by 62.5% gives 39. The number is
(a) 18 (b) 42
(c) 24
(d) None of these​

Answer 1

Answer:

(c) 24

Step-by-step explanation:

Let the number be x. Then,

$(1 + \frac{625}{10} \times \frac{1}{100} )x = 39 \\ = ) \frac{13}{8} x = 39 \\ = )x = 39 \times \frac{8}{13} \\ = )x = 24$

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