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InterviewSolution
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There are three persons L. M and N who each invested in two different scheme S_(1) and S_(2). L invested Rs. 1,60,000 for 2 yr in scheme S_(1) and 60,000 for 4 years in scheme S_(2). M invested Rs. 60,000 for 3 years in S_(1) and he did not invest in scheme S_(2). M also obtained a profit of 20,000 by selling his car. N invested Rs. 100000 for 5 years in scheme S_(1) and 20,000 for 3 years in scheme S_(2) . total profit obtained from scheme S_(1) is 4 lakh and scheme S_(@) is 1,80,000. If L had invested his sum at Simple Interest for 3 yr at the rate of R%. p.a instead in scheme S_(1) and M has invested his sum at compound Interest at (R+5%) p.a. for 1 year and difference in interestobtained is 60,000 then find value of R%. |
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Answer» 0.1 `160000xx2:60000xx3:10000xx5` `16:9:25` Profit share of L from Schem `S_(1)=(16)/(50)xx400000=128000` Profit share of M from scheme `S_(1)=(9)/(50)xx400000=72000` Profit share of N from scheme `S_(1)=(25)/(50)xx400000=200000` Ratio of profit share of L and N in scheme `S_(2)` `60,000xx4:20,000xx3` `12:3` Profit share of L in scheme `S_(2)=(12)/(15)xx180000=144000` ltbgt Profit share of N in scheme `S_(2)=(3)/(15)xx18,0000=36000` `(160000xxRxx3)/(100)-6000xx((R+5)/(100))=60,000` `2400R-300R-1500=30000` `8R-5=1500=30000` `7R=105` `R=15%` |
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