IBPS Government Jobs Exams Numerical Ability Time Distance and Speed

A train having length 600 meters crosses a car going in the same direction at a speed of 12 km/hr. in 45 seconds. The same train crosses another man going on bike in opposite direction to that of train in 20 seconds. Find the speed of the other man on bike in km/hr.?
A)60 km/hr B)36 km/hr C)48km/hr D)54 km/hr E)40 km/hr

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IBPS Other Question

If johnny can finish certain work in 30 minutes. With the help of his brother, Bobby, they do the work in 20 minutes. How long would it take Bobby working alone to finish the work ?
A)1/2 hour B)3/4 hour C)1 hour D)3/2 hours E)2 hours
A milkman has 80 liter mixture of milk and water which has 20% of water. The milkman sold some mixture and add 8 liter of water to the remaining mixture. Now the ratio of the milk and water is 12:5. Find the sold mixture. A)5 Liter B)20 Liter C)16 Liter D)4 Liter E)None of these