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Prashant Kumar P.
tutor for 6 months and Mechanical engineering Graduate
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Physical Education
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Question:

How is "Halasan" done?

Prashant Kumar P.

Basic Math
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Question:

Mohan bought 50kg of potatoes for ₹500.If he sold the potatoes at ₹12 per kg,what was his profit.Also calculate his profit percentage.

Prashant Kumar P.

Cost price of potatoes---₹500 Selling price of potatoes--₹12*50=₹600 Mohan's profit=₹600-₹500=₹100 Mohan spent ₹500 and made profit of ₹100 ∴ he made a profit of ₹100 per ₹500 Now,100 per 500 =100/500=1/5 1*100/5*100=20/100=20% We say that his profit=20%or his profit percent is 20.

Mechanical Engineering
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Question:

Which compressor is used in AC?

Prashant Kumar P.

Most commonly used air compressors are the reciprocating compressors.Nowadays rotary compressors are also in high demand due to their power efficiency.Centrifugal, scroll and screw compressors are used in central air conditioning system. Reciprocating compressor is used where a less quantity and higher pressure is required.It is less expensive which makes AC easy for domestic use.

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