# Simple Interest/ Annuity sample problem

May 19th, 2015
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1) Find tn?a) S = 2+6+10+14+18+……………n b) S = 8+16+24+……………..........n 2) Find tn & t40. 18+15+12+9…………………..3) Find tn & Sn? 2+4+6+8+………………..10 4) Find tn & t12?27,22,17,12

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Series :-1) Find tn?a) S = 2+6+10+14+18+nb) S = 8+16+24+..........n2) Find tn & t40. 18+15+12+9..3) Find tn & Sn?2+4+6+8+..10 4) Find tn & t12?27,22,17,125) Find tn & t16?3,7,11,156) Find AP or not?a) tn = 3n+2b) tn = 6n-4c) tn = -4n+10d) tn = 18n-2e) tn = -4n+16f) tn = -4+ng) tn = -6n-187) 4+7+10+13+n Sn = 175 , n = ?8) Sn = 105 , a = 25 , d = -3. Find n?9) For the following GP , Find t5 , t12 & tn.1 , -3/2 , 9/4 , -27/8 . . . . . . . . . . . .10) The nth term of a sequence is 3(2n-1). Show that it is a G.P. What is the first term and the common ratio?11) -3/6 ,+ 1/6 ,-1/8,+1/54.. Find t6 , nth , a & r?12) Find 5 numbers in A.P. such that their sum is 25 & the sum of their squares is 135.13) 3,6,12,24 Find sn s5 & s10.14) If s2 = 8, s4 = 80. Find a & r?15) 4+44+444+4444.5+55+555+5555. Find sum upto n terms.16) Find three numbers in G.P. such thata) Their sum is 26 & their production is 216.b) Their sum is 35 & their production is 1000.c) Their sum is 38 & their production is 1728.d) Their sum is 13/3 & their production is 91/9..17) A man saved Rs.16500 in 10 yrs. In each year after the first he saved Rs.100 more than he did in the preceding year. How much did he save in the first year?18) A man secure an interest free

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