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प्रश्न
If 90% of x is 315 km, then the value of x is ______.
विकल्प
325 km
350 km
350 m
325 m
उत्तर
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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संबंधित प्रश्न
After offering discount of 10% on marked price, a customer gets total discount of 17 rupees. To find the cost price for the customer, fill in the following boxes with appropriate numbers and complete the activity.
Suppose, marked price of the item = 100 rupees
Therefore, for customer that item costs `square` - `square` = 90 rupees
Hence, when the discount is `square` then the selling price is `square` rupees.
Suppose when the discount is `square` rupees, the selling price is x rupees.
∴ `x/square=square/square`
∴ x = `(squarexxsquare)/square`
∴ x = `square`
∴ the customer will get the item for 153 rupees.
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