# Quantitative Aptitude Quiz for RBI Assistant 2015 - Set 5

Hello and welcome to ExamPundit. Here is a set of Quantitative Aptitude Quiz for RBI Assistant 2015.

1. A boat covers a distance of 112 km in 8 hours down stream. To cover the same distance upstream, the boat takes 20 hours longer. What is the speed of boat in still water ?
(a) 8 kmh–1
(b) 9 kmh–1
(c) 11 kmh–1
(d) 12 kmh–1
(e) 14 kmh–1

2. A father is 2.5 times the age of his son. After 15 years he will be 5/3 times the age of his son. What is the age of son at present ?
(a) 8 years
(b) 10 years
(c) 12 years
(d) 15 years
(e) 18 years

3. A mechanic bought three cars at Rs. 11200 each and spent Rs.4800 on repair of all cars. At what price must he sell each car to gain 12 % ?
(a) Rs.13848
(b) Rs.14336
(c) Rs.14724
(d) Rs.15018
(e) Rs.15232

4. 27 men can do a piece of work in 32 days. How many days will 12 men take to finish half of the work ?
(a) 24 days
(b) 27 days
(c) 32 days
(d) 36 days
(e) 42 days

5. Subham sold his watch at 14% profit on the cost price. If he got Rs. 371 as profit, then what is the cost price of watch ?
(a) Rs. 2650
(b) Rs.2700
(c) Rs.2750
(d) Rs.2800
(e) None of these

6. 3/7th of a number is equal to 48% of another number. What is the difference of these two numbers ?
(a) 18
(b) 21
(c) 24
(d) Can't be determined
(e) None of these

7. A train crosses a 240 m long bridge in 25 seconds and it crosses a pole in 9 seconds. What is the speed of train in kmh–1 ?
(a) 36 kmh–1
(b) 45 kmh–1
(c) 54 kmh–1
(d) 72 kmh–1
(e) None of these

8. Cost price of an article is 68% of its selling price. What is the approximate percentage profit ?
(a) 32 %
(b) 34 %
(c) 47 %
(d) 68 %
(e) None of these

9. The prices of a mobile and radio are in the ratio of 19 : 7. If a mobile costs Rs.4800 more than a radio then what is the price of mobile ?
(a) Rs. 6800
(b) Rs. 7200
(c) Rs. 7600
(d) Rs. 7800
(e) Rs. 8400

10. The difference between simple interest and compound interest at the same rate for Rs. 8000 in two years is Rs. 28.80. The rate of interest is ?
(a) 4 % p.a
(b) 6 % p.a
(c) 8 % p.a
(d) 10 % p.a
(e) 12 % p.a

Regards

Team ExamPundit