IBPS Government Jobs Exams Numerical Ability Pipes and Cistern

Two tap A and B can fill a tank in 24 minutes and 16 minutes respectively, if both taps are opened together find after how much time tap A is closed so that whole tank is filled in 12 minutes? (1) 12 min (2) 4 min (3) 8 min (4) 6 min (5) 10 min

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IBPS Other Question

If A invested Rs. 12000 at some rate of interest of S.I and B joined him after 3 months investing 16000 at same rate of interest. If A leaves before 2 month of completion, then what will be the share of B in a profit after 1 year, if the total profit is Rs. 22000 ? (1) 10000 (2) 14000 (3) 12000 (4) 8000 (5) 11000 (I) 3x²- 17x + 20 = 0 and
(II) 5y² - 28y + 15 = 0
Solve both the equations and give answer
(1) if x>y (2) if x≥y (3) if x