Question

if 90% of X is 315 km ,then what is the value of x?​

Answer 1

From the question , we have 90 percent of x is 90. →90x /100 = 315 km

x =315×100/90km

x = 450 km

Answer 2

Answer:

350 km is the answer

Step-by-step explanation:

$\sf \: we \: have \: 90\% \: of \: x \: = 315$

$\implies \sf \: \: \frac{90}{100} \times x = 315$

$\implies \sf \: \: \: \: \: \: x \: = \frac{315 \times 100}{90} = \frac{315 \times 10}{9} = 350$

$\sf \implies \: x = 350 \: \: km$

The value of x is 350 km