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pagsagot po with explanation :)

An electric refrigerator rate 350W is used for 8hrs per day. An electric fan rated 750W used for 2hrs per day. Calculate the cost of using these appliances for 30days. It's the cost of 1 unit is RS. 4​


Sagot :

Given:

The cost of using these appliances for 30 days.

Solution

★ The cost of using these appliances for 30 days = 516 Rupees

Now finding the cost of using these appliances for 30 days.

the cost of 1 unit is rupe.e 4

129 × 4

516 R.up ees