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Program to find the sum of the series (1/a + 2/a^2 + 3/a^3 + ... + n/a^n)
Last Updated: 21 March 2023
Given two integersa andn. The task is to find the sum of the series 1/a + 2/a2 + 3/a3 + ... + n/an.Examples:Input: a = 3, n = 3Output: 0.666
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Aptitude | Series | Question 15
Last Updated: 28 June 2021
Find wrong number in series:15, 25, 30, 46, 85, 90, 115(A)30(B)46(C)85(D)115 Answer: (B)Explanation:All except 46 are multiple of 5Quiz of
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Aptitude | Series | Question 14
Last Updated: 28 June 2021
Find wrong number in series:8, 12, 16, 27, 40.5, 60.75(A) 12(B) 16(C) 40.5(D) 60.75 Answer: (B) Explanation: (8×3)÷ 2 = 12(12×3)÷ 2 = 18
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Aptitude | Series | Question 13
Last Updated: 28 June 2021
Find wrong number in series:2, 8, 12, 20, 30, 42, 56, 72(A) 8(B) 20(C) 42(D) 72 Answer: (A) Explanation: 2+4=6, 6+6=12, 12+8=20, 20+10=30, 3
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Aptitude
Aptitude
Aptitude-Series
Aptitude | Series | Question 11
Last Updated: 28 June 2021
Find wrong number in series:7, 26, 63, 124, 215, 342,496(A) 7(B) 63(C) 215(D) 496 Answer: (D) Explanation: (23Â - 1), (33Â - 1), (43Â - 1),
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Aptitude | Series | Question 10
Last Updated: 28 June 2021
Find wrong number in series:8, 24, 12, 36, 18, 54, 28(A)12(B)24(C)18(D)28 Answer: (D)Explanation:mixture of two alternate series:8*3=2424/2
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Aptitude | Series | Question 9
Last Updated: 28 June 2021
Find wrong number in series:23, 29, 31, 33, 41, 43, 47(A) 29(B) 33(C) 41(D) 47 Answer: (B) Explanation: prime numbers from 23Quiz of this Qu
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Aptitude | Series | Question 8
Last Updated: 28 June 2021
Find wrong number in series:4, 5, 7, 12, 19, 35(A)12(B)19(C)35(D)7 Answer: (A)Explanation:4+20=55+21=77+22=1111+23=1919+24=35Quiz of this Q
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Aptitude | Series | Question 7
Last Updated: 28 June 2021
Find wrong number in series:1, 8, 27, 64, 81, 216, 343(A) 1(B) 27(C) 81(D) 343 Answer: (C) Explanation: cubes of natural numbers81 is not th
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Aptitude | Series | Question 6
Last Updated: 28 June 2021
Find wrong number in series:2, 3, 6, 0, 8, -3, 14, -6(A) 3(B) 0(C) 8(D) 3 Answer: (C) Explanation: two alternate series:2+4 =6,3-3 =06+4 =10
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series
Aptitude
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Aptitude | Series | Question 5
Last Updated: 28 June 2021
Find wrong number in series:4, 12, 48, 240, 1240, 10080(A) 12(B) 240(C) 1240(D) 10080 Answer: (C) Explanation: 4*3=1212*4=4848*5 = 240240*6
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Aptitude
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Aptitude | Series | Question 4
Last Updated: 28 June 2021
Find wrong number in series:2, 7, 10, 22, 18, 37, 26, 46(A) 10(B) 18(C) 26(D) 46 Answer: (D) Explanation: two alternate series:2+8 =107+15=2
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Aptitude
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Aptitude | Series | Question 3
Last Updated: 28 June 2021
Find wrong number in series:1, 4, 9, 16, 25, 32, 49, 64(A) 9(B) 25(C) 32(D) 64 Answer: (C) Explanation: Square of natural numbers:12=1, 22 =
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Aptitude | Series | Question 2
Last Updated: 28 June 2021
Find wrong number in series:34, 7, 37, 14, 36, 28, 43, 56(A) 14(B) 36(C) 28(D) 56 Answer: (B) Explanation: mixture of series (alternate numb
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Aptitude | Series | Question 1
Last Updated: 28 June 2021
Find wrong number in series:12, 25, 49, 99, 187, 395, 789(A)789(B)187(C)99(D)49 Answer: (B)Explanation:12*2+1 =2525*2-1 = 4949*2+1 = 9999*2
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