Q1. The ratio between upstream and downstream speed of a boat is 2: 5. What is the ratio between speed of boat in still water and speed of current?
Q2. Speed of a boat in steel water is 6 kmph. The boat covers 32 km distance upstream in 8 hours. How much time it will take to cover the distance downstream?
Q3. Rishabh can swim 27 km upstream in 9/2 hours while 24 km downstream in 2 hours. Speed of boat in steel water is how much percent more than the speed of current?
Q4. Prashant and Ravi start swimming from two opposite ends of a river. Speed of Prashant in steel water is 4 km/h and speed of Ravi is 25% more than that of Prashant. If distance between two ends is 20 km and both meet at a point 16 km away from end of Prashant, then what is the speed of current? (river is flowing from Prashant’s end to Ravi’s end)
Q5. The distance between two points A and B is 36 km. A boat goes from point A to point B downstream and returns from point B to point A upstream in 18 hours. If speed of boat in steel water is 6 km/h, then what is the speed of current (in kmph)?
Q6. A boat while travelling upstream covers a distance of 18 km at the speed of 3 km/h, whereas while travelling downstream it covers the same distance at a speed of 9 km/h. What is the speed of the boat in still water?
Q7. The cost of 27 toasters and 18 mixers is Rs. 80,100. What is the cost of 12 toasters and 8 mixers together?
Q8. In an urn there are 4 red balls and 3 blue balls. If two balls are drawn at random, find the probability that none is red.
Q9. The difference between the 5/6 th of a number and 35 percent of the same is 1392. What will be 55% of that number?
Q10. An employer gives Rs. 26 per day to an employee on duty and deducts Rs. 7 per day for his absence from the duty. If after 56 days, the employee receives Rs. 829, for how many days was the employee absent?
Directions (11-15): In each of these questions, two equations (I) and (II) are given. You have to solve both the equations and give answer
Q11.
Q12.
Q13.
Q14.
Q15.
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