Question

If 90% of x is 315 km, then the value of x is:

Answer 1

Answer:

Value of X is 350 km.

Step-by-step explanation:

According to Question

90/100 × X = 315

X= 315× 100/90

X=350

Answer 2

SOLUTION

GIVEN

90% of x is 315 km

TO DETERMINE

The value of x

EVALUATION

Here it is given that

90% of x is 315 km

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

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

$\displaystyle \sf{ \implies x = 315 \times \frac{10}{9} \: \: \: km}$

$\displaystyle \sf{ \implies x =35 \times 10 \: \: \: km}$

$\displaystyle \sf{ \implies x =350\: \: \: km}$

FINAL ANSWER

Hence the required value of x = 350 km

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