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Compound Interest, EXERCISE - 11, Q1. Find the amount and the Compourd interest on Rs 8000 at 5%, per annum for years., Sol., principal, 8000, Ratz f interest, 5% P.a., PTR, 100, 8000 X 5x1, Interest for te firat, year, 400-, 100, psincipal for the Second yeor, 8000+ 400 = 8400., 8400 x 5X), Ginterest for the Second, year =, 420, 100, Jear = 8400+ 400 = 880., 2000 = 880., Amount ofter the Second, Total Compound Grterest, A person invests a Rg.5600 at 14Y p.Q. Compound, i The interest for the first Hear., i, amount at the end d4 the first year:, 8820, interest, find:, (i, The interest for the end, year, Correct to the nearest rupee., principal, = 5600, Rate f interest = 14%.p.a., Isterest for tthe t, PTR, F600 x1x14, 100, 784., %3D, 100, i) Amount afler one, 5600 + 784, your, i) Gnterest for the 2" year =, 6384, rd, 6384X14X1, 893-76 = 694., 100, Q3 A man inyet Re. 46875 at 4% P.a. Compound Interest (CI) for 3yeass., Calculale:, (i, The interest for the, year-, &tauding, (i) The amount, to hiz Credit at the eud the, second, year., ) The Inlerest for tue -third year.

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principal -for the ghdr haf, yoar =, - 52000, Ginterest for tie s* half year, = 2080, 100, Amount after a half year, : 52000 + 2080 = 54080, psircipal for 30 hatt year, Interest + 3" half year, 54080, 54080 x 4x1, - 2163. 20, 100, Amount after year, 54080 + 2163- 30 - 56243. 20., Compoint interest for $$ year = final amount a principal ams, = 56243.20 - 50000, 6243- 20., QII. Calculate the amount and the cf on Ra. 5000 in, when-the, Yate of interest for the Successive years is 6% and 8y, Tespectivoly., so., principal, Rali dinterest for the 1ear = 6% and for the 2" year, - 5000, Gime = 2, years, 8%, Amount for 2years, 6., : "Co0( 14-0+ ) - 5000 xx s, 53x, 5724., Gnterest = A-P = 5724 - 50C = 124., %3D, Q2 Calculati the amount and -the CI on Rs. 17000 in, wheu the, syears, Yati of interest for Scuccessive years, is 10%., l9Y. arnd 14%. vespecfively., Sol., principal = 17000, Rate d interest for the 3 Sucesrive years = 10%, 10% and 14%, Time, syears., of, Amount afler 3 years =P(I+ 00)- 7000(1+ 00)(+ 100 (1+, to Y 10 x % : "n2 4 - 93449.80, 100, = 17000 x, 57, 117249, Amount d CI =, A -P, = 23449.80 - 17000, 2 6449.80-