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

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Question

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

Options

  • 325 km

  • 350 km

  • 350 m

  • 325 m

MCQ
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Solution

If 90% of x is 315 km, then the value of x is 350 km.

Explanation:

We have, 90% of x = 315 km

⇒ `90/100 xx x = 315`

⇒ `x = (315 xx 100)/90`

= `(315 xx 10)/9`

= 350

⇒ x = 350 km

Hence, 350 km

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Chapter 9: Comparing Quantities - Exercise [Page 287]

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NCERT Exemplar Mathematics Exemplar [English] Class 8
Chapter 9 Comparing Quantities
Exercise | Q 5. | Page 287

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