Ratio & Proportion (Railway Maths) (Part – VII)

Total Questions: 50

11. A specific amount is divided into 2 parts in the ratio 6: 5. If the first part is 48 rupees, then the total amount (in rupees) is :- [RPF Constable 17/01/2019 (Morning) ]

Correct Answer: (b) 88
Solution:

The given amount is divided in the ratio = 6 : 5
According to question,
6 units = 48 Rs.
Then , 11 units = 88 Rs.

12. In a box, pen, pencil, and eraser are kept in the ratio 3 : 2 : 1. If the costs of pen, pencil and eraser are Rs. 3, Rs. 2 and Rs. 2 respectively, and the cost for the whole box is 285 rupees, then how many pens are there in the box? [RPF Constable 17/01/2019 (Evening)]

Correct Answer: (c) 57
Solution:

13. A, B and C divide a cash prize among themselves in the ratio 6 : 7 : 8. If C got Rs. 52,000, find the total amount received by A and B together. [RPF Constable 18/01/2019 (Morning)]

Correct Answer: (c) Rs. 84,500
Solution:

Ratio of salary of A, B and C ⇒ 6 : 7 : 8
According to question ,
C got 52000 Rs. = 8 units
1 unit = 6500 Rs.
Then, 13 units = 84500 Rs.

14. A school kid bought three different types of pens and their numbers are in the ratio 7 : 6 : 5, which cost Rs. 5, Rs. 10, Rs. 15 respectively. If the kid has spent Rs. 340 to buy the pens, find the number of 10 rupee pens that he has bought. [RPF Constable 18/01/2019 (Morning)]

Correct Answer: (d) 12
Solution:

15. The pen, pencil, and eraser in a box are in the ratio 3 : 2 : 1. If the prices of pen, pencil and eraser are 3, 2 and 2 respectively and the cost is 180 rupees, then count the number of pen in the box. [RPF Constable 18/01/2019 (Afternoon) ]

Correct Answer: (c) 36
Solution:

16. A box contains pens, pencils and erasers in the ratio 3 : 2 : 1. If the cost of pen, pencil and eraser is Rs. 3, Rs. 2 and Rs. 2 and if the amount spent on the box is Rs 135, then find the number of pens in the box. [RPF Constable 18/01/2019 (Evening) ]

Correct Answer: (b) 27
Solution:

17. The children of a school buy three different types of pen and their ratio is 5 : 6 : 4, whose values are Rs. 5, Rs. 10, Rs. 15. If the child spent Rs. 290 to buy all the pens, then find the number of Rs. 10 pens bought by him. [RPF Constable 19/01/2019 (Morning)]

Correct Answer: (a) 12
Solution:

18. A, B and C divide a cash prize among them in the ratio of 3 : 5 : 7. If C receives Rs. 49,000, then find the total amount received by combining both A and B. [RPF Constable 19/01/2019 (Morning)]

Correct Answer: (d) Rupee 56,000
Solution:

Ratio of salary of A, B and C ⇒ 3 : 5 : 7
According to question, C got 49000 Rs. = 7 units
1 unit = 7000 Rs. Then , 8 units = 56000 Rs.

19. A bag contains old coins of different types in the ratio 12 : 13 : 11, whose values are Rs. 3, Rs. 4 and Rs. 5 respectively. If the total value of coins is Rs. 572, then what is the total number of coins of value Rs. 3? [RPF S.I. 19/12/2018 (Morning)]

Correct Answer: (a) 48
Solution:

20. The salaries of Sam, Sai and Shree are in the ratio 7 : 9 : 11. If Shree gets Rs. 320 more than Sam, then what is Sai's salary (in Rs.)? [RPF S.I. 19/12/2018 (Morning)]

Correct Answer: (d) 720
Solution:

Ratio of salary of sam , sai and shree ⇒ 7 : 9 : 11
According to question,
Shree got 320 Rs. more than sam = 4 units
4 units = 320 Rs. Then, 9 units = 720 Rs.