Lakshman gave Rs 1200 on loan Some amount he gave at 4 per annum on simple interest and remaining at...........

Quantitative Aptitude ( CCS) Simple Interest

Lakshman gave Rs. 1200 on loan. Some amount he gave at 4% per annum on simple interest and remaining at 5% per annum on simple interest. After two years, he got Rs. 110 as interest. Find the amounts given at 4% and 5% per annum on simple interest are, respectively.

Rs.500 and Rs.700

Rs.120 and Rs.180

Rs.550 and Rs.640

Rs.320 and Rs.450

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Explanation:

Let the amount be x and (1200-x).
(x*4*2)/100 + ((1200-x)*5*2)/100 = 110
=> 8x/100 + (12000 – 10x)/100 = 110
=> -2x + 12000 = 11000
=> 1000/2 = 500= x
The required amounts are 500 and 700.

Hence, option 1 is the correct answer.

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