Top 20 Ratio and Proportion Based Questions

Ratio and Proportion Based Questions :: Aptitude

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   Karan, Hari and Kowshik play cricket. The runs got by Karan to Hari and Hari to Kowshik are in the ratio of 5:3. They get altogether 588 runs. How many runs did Karan get?

1. A. 150 runs     

2. B. 300 runs      

3. C. 250 runs        Correct Answer

4. D. 200 runs      

5. E. None of these      

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   The cost of 8A is equal to the cost of 50B. The cost of 19C is 456. The cost of B is twice the cost of 2C. What is the total cost of 3A and 4B together?

1. A. 2184       Correct Answer

2. B. 2168      

3. C. 2243      

4. D. 2264      

5. E. None of these      

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   Divide Rs. 370 into three parts such that second part is 1/4 of the third part and the ratio between the first and the third part is 3 : 5. Find the amounts of these three parts respectively.

1. A. 50, 120, 200     

2. B. 120, 50, 200        Correct Answer

3. C. 200, 120, 50      

4. D. 200, 100, 50      

5. E. None of these      

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   Two numbers are in the ratio of (1 ½): (2 2/3). When each of these is increased by 15, the ratio changes to 1 2/3: 2 ½. The larger of the numbers is,

1. A. 48       Correct Answer

2. B. 27      

3. C. 36      

4. D. 64      

5. E. 56      

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   Chintu, Pintu and Mintu are three friends. Chintu is twice as old as Pintu and Mintu is as old as Cintu and Pintu together. Two years later, the ratio of age of Chintu and Mintu would be 7:10 what was the age of Pintu five years ago?

1. A. 2 years     

2. B. 4 years      

3. C. 5 years      

4. D. 1 years        Correct Answer

5. E. 8 years      

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   Find the ratio of speed of A,B and C if for every 11 steps taken by A,B takes 12 steps and C takes 14 steps. Also 12 steps of A are equal to 14 steps of B and 16 steps of C.

1. A. 154:144:147       Correct Answer

2. B. 132:168:224      

3. C. 25:24:23      

4. D. None f these      

5. E. 161:123:113      

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   The price of a ring varies jointly, with the cube root of number of diamonds and weight of gold used in it. The price of the ring was “10,000. When it had 64 diamonds and 15 gm of gold. Find the no. of diamonds if the price of ring was~` 10,500 and weight of gold was 21 gm.

1. A. 3     

2. B. 9      

3. C. 27        Correct Answer

4. D. 81      

5. E. 16      

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   There are two containers A and B. Container A is filled with 30 liters of kerosene while container B is filled with 30 liters of water. Ten liters of kerosene is taken from container A and put in container B and then twelve liters of the mixture (of kerosene and water) is taken from container B and put in container A. Find the ratio of kerosene in A and B respectively.

1. A. 23:9     

2. B. 21:5      

3. C. 23:7        Correct Answer

4. D. 1:3      

5. E. None of these      

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   In a school, students of class I and class II are going for a picnic to Surajkund and Badkal lake respectively. The ratio f number of students in class I and II is 5:3. Also the ratio of the contribution made by each student of class I and II is 19:17. If the total contribution made by the all the students of both the class is Rs.29200, then find the total contribution made by class II students only.

1. A. Rs.10950     

2. B. Rs.13789      

3. C. Rs.10200        Correct Answer

4. D. Rs.13272      

5. E. None of these      

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    A donkey moves at a speed of 8 kmph, when no load is put on him. Reduction in the speed of donkey varies directly to the square root of the kgs of load put on him. When only 4 kgs of load is put the speed of the donkey becomes 6 kmph. Find the minimum load that can be put on the donkey with which it cannot move.

1. A. 64 kg        Correct Answer

2. B. 63.9 kg       

3. C. 65.2 kg      

4. D. Cannot be determined      

5. E. None of these      

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    container has a mixture of kerosene and castor oil in the ratio of 7:5 and another container contains kerosene and castor oil in the ratio of 5:3. Find the proportion in which the mixtures from two containers should be mixed so that the resultant mixture has ratio of kerosene and castor oil of 3:2

1. A. 2:3     

2. B. 3:2        Correct Answer

3. C. 4:1      

4. D. 5:2      

5. E. None of these      

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    The no. of pens in three different pencil boxes in the ratio of 1:2:3. Find the ratio in which the number of pens in the first and the second boxes must be increased so that the new ratio becomes 3:2:1.

1. A. 1:3     

2. B. 2:1        Correct Answer

3. C. 2:3      

4. D. 3:4      

5. E. None of these