Question

a number is 2/5 times another number if their sum is 70 find the number

Answer 1

answer is 68
let the no. be x
2/5 of x + x = 70
2/5x+x=70   LCM = 5
5x + 2/5(whole upon)= 70
5x+ 2 = 70 * 5/5 (whole upon)
5x=68

Answer 2

Answer:

$Required \: number = 50$

Step-by-step explanation:

$Let \: the \: number = x$

$\frac{2}{5} \: times \: of \: the \: number \\= \frac{2x}{5}$

/* According to the problem given, we get

$Sum \: of \: the \: number = 70$

$\implies x + \frac{2x}{5} = 70$

$\implies \frac{5x+2x}{5} = 70$

$\implies \frac{7x}{5} = 70$

$\implies 7x = 70 \times 5$

$\implies x = \frac{70\times 5}{7}$

$\implies x = 10 \times 5$

$\implies x = 50$

Therefore,

$Required \: number = 50$

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