# Centilytics Interview Questions

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###### Three pipes A, B and C can fill a cistern in 6 hrs. After working together for 2 hours, C is closed and A and B fill the cistern in 8 hrs.Then, find the time in which the cistern can be filled by pipe A. 10 hrs B. 12 hrs C. 14 hrs D. 16 hrs
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###### Let f(x) = lxl, then A. f(x) is maximum at x = 0 B. f(x) is minimum at x = 0 C. f'(0) = 0 D. None of these
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###### A man sells Rs.5000, 12 % stock at 156 and uinvests the proceeds parity in 8 % stock at 90 and 9 % stock at 108. He hereby increases his income by Rs. 70. How much of the proceeds were invested in eac A. 4000 B. 4200 C. 4400 D. 4600
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###### If sec^2 (A) is 5/2, the quantity 1-sin^2 (A) is equivalent to A. 0.1 B. 0.2 C. 0.3 D. 0.4
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###### Find the square root of 625/256 A. 26/25 B. 25/26 C. 26/27 D. 27/26
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###### A man invests in a 16% stock at 128. The interest obtained by him is : A. 12% B. 12.5% C. 13% D. 13.5%
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