Find respective ratio of curved surface area of tank P and total surface area of tank R.

2: 3
4: 3
2: 1
3: 1

Correct answer: 2: 1

Solution

For a cylinder, curved surface area depends on 2πrh, while total surface area depends on 2πr(r+h). Using the given dimensions, the first tank’s curved area and the second tank’s total area simplify to a 2:1 ratio.

Related IBPS PO Quantitative Aptitude questions

Direction (83-84): Given below are two number series. Series I is a missing series while series II is a wrong number series which follows pattern of series I only. 1. 11, P, 181, 350, 639, 1000 2. 242, 251, 255, 280, 329, 450, 619 Q83. If 2 is added in successive terms of a series starting with the nearest prime of P, then find the 5th term of this new series
Direction (83-84): Given below are two number series. Series I is a missing series while series II is a wrong number series which follows pattern of series I only. 1. 11, P, 181, 350, 639, 1000 2. 242, 251, 255, 280, 329, 450, 619 Q84. If ‘y’ is the wrong number of the series II, then find the value of ‘2y+1’.
Q85. Car ‘X’ travels for 4 hours to reach from point A to B. Car ‘Y’ travels at the speed of 70 kmph to reach from point B to C in 3 hours. Distance travelled by car ‘X’ to cover point A to B is 1/7th more than distance travelled by car ‘Y’. How much time will car ‘X’ take to reach from point A to C?
Direction (87-91): The table given below shows the data about track record of car racing game, where 4 cars P, Q, R and S are competing to reach finishing line which is at a distance of 3000 m from their initial starting point. 1. Drift refers to over starting intentionally done by driver. 2. While calculating average speed, do not consider time taken in drift/crash. 3. Points = 50 × drifts - 20 × crashed Cars | Drift | Time to reach finishing line (in sec) | Crash P | 5 | 180 | 3 Q | 7 | 120 | 5 R | 6 | 150 | 4 S | 8 | 100 | 6 Speed of car S is what percentage more than that of car Q?
How much speed does car R need to gain in order to cover twice the distance in 5/3 of the original time taken?
If 10% of boys from school S scored more than 90% in an exam, then find maximum number of boys who scored less than 90%.

⚔️ Practice IBPS PO Quantitative Aptitude free + battle 1v1 →