Calculate the simple interest on Rs.6400 for 6 months at the rate of 10% per annum

If P be any sum and r% be its rate of Interest per annum for t years, then interest in t years be

Interest ( I ) = ( Ptr ) / 100

Given that the sum = Rs 6400

Time = 6 months = 1/2 year

Rate = 10% p.a.

So, interest in 6 months

= (Sum * Time * Rate) / 100

= Rs { 6400 * ( 1 / 2 ) *10 } / 100

= Rs 320

Therefore, the simple interest on Rs 6400 for 6 months at the rate of 10% per annum is Rs 320.

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