SIMPLE INTEREST
SIMPLE INTEREST
SIMPLE INTEREST
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EXERCISE PROBLEM<br />
. Ex.l Find: S.l. on Rs 68000 at 16 2/3 % per annum for 9 months.<br />
Sol. P = 68000, R = 50/3 % p.a.<br />
& T = 9/12 year = 3/4 years.<br />
.. S.I. = ( PxRxT/100)<br />
= Rs. [6800 x 50/3 x ¾ x 1/100] = Rs. 8500<br />
Ex.2 Find:<br />
S.l. on Rs 6250 at 14% per annum for 146 days.<br />
Sol.<br />
P = Rs. 6250, R = 14 % p.a. & T = (146/365) year = 2/5 year .<br />
:. S.l. = Rs (6250 x 14 x 2/5 x 1/100)= Rs 350.<br />
Ex.3 Find: S.l. on Rs 3000 at 18% per annum for the period from 4th<br />
Sol.<br />
Time = (24 + 31 + 18) days = 73 days = 1/5 year .<br />
P = Rs 3000 and R = 18 % p.a.<br />
:. S.I. = Rs (3000 x 18 x 1/5 x 1/100)= Rs 108 .<br />
Remark: The day on which money is deposited is not counted while the day on which money is<br />
withdrawn is counted.<br />
Ex. 4. A sum at simple interest at 13 i % per annum amounts to Rs. 2502.50 after 4 years.<br />
Find the sum.<br />
Sol. Let sum be x. Then<br />
S.I. = (X x 27/2 x 4 x 1/100) = 27X/50