Nikhilesh invested certain amount in three different schemes A, B and C with the rate of interest 10 p.c.p.a., 12 p.c.p.a.and 15 p.c.p.a. respectively. If the total interest accrued in one year was 3200 and the amount invested in scheme C was 150% of the amount invested in scheme A and 240% of the amount invested in scheme B, what was the amount invested in scheme B?  Choose the correct choice from the following answers:	A) 8000	B) 5000	C) 6500	D) Cannot be determined	E) None of these
Ratio of Nikhilesh’s investments in different schemes   = 100:150×100/240:150=8:5:12   Now, according to the question,   8k×10/100+5k×12/100+12k×15/100 = 3200   or, 80k + 60k + 180k = 3200 × 100   or, 320k = 3200 × 100   or, k = 1000   ∴ amount invested in scheme 5000 will be = 1000 × 5 = 5000   Answer 5000
<result>B</result>
Nikhilesh invested certain amount in three different schemes A, B and C with the rate of interest 10 p.c.p.a., 12 p.c.p.a.and 15 p.c.p.a. respectively. If the total interest accrued in one year was 3200 and the amount invested in scheme C was 150% of the amount invested in scheme A and 240% of the amount invested in scheme B, what was the amount invested in scheme B?