Question

Rajni bought 5/2 kg onion at rupees 30 1/2 per kg . Find out the amount spent by Rajni.

Answer 1

Given,

Total amount of purchased onion = 5/2 kilograms

Rate of the onion = Rs. 30½ per kilogram

To find,

To total cost of the total purchase.

Solution,

First of all, we have to simplify the given fractional values into normal decimal values for an easier mathematical calculation.

Total amount of onion = 5/2 kg = 2.5 kg

Rate of the onion = Rs. 30½ = Rs. 61/2 = Rs. 30.5

Now, we can easily calculate the total cost by the following mathematical formula.

Total cost :

= Total amount of onion × Rate of onion

= 2.5 × 30.5

= Rs. 76.25

= Rs. 76¼

Hence, the total amount of cost is Rs. 76¼

Answer 2

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