SBI PO Quantitative Aptitude Quiz: 27th May

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. 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?

Q3. A boat travel 75 km downstream and take same time as it travels 60 km in upstream. Speed of boat in downstream is what percent of the speed of boat in still water.

Q4. In a river, the ratio of the speed of stream and speed of a boat A in still water is 2 : 5. Again, in the same river ratio of the speed of stream and speed of an another boat B in still water is 3 : 4. What is the ratio of the speeds of the boat A to the boat B in still water ?(if speed of stream is same in both conditions.)

Q5. Speed of a boat in still water is 300% more than the speed of current. The boat takes a total time of 8 hours to cover a distance of 45 km upstream and downstream both. Find speed of current.

Directions (6-10): What comes at the place of question marks in below series: 


Q6. 9, 11, 22, 51, 107, ?

Q7. 67, 75, 59, 91, 27, ?

Q8. 12, ? , 168, 504, 1260, 2520

Q9. ?, 187 , 247, 271, 277, 277

Q10. 6, ?, 94, 168, 262, 376

Directions (11-15): In the following questions quadratic equations numbered (I) and (II) are given. You have to solve both equations and Give answer 


Q11.

Q12.

Q13.

Q14.

Q15.