Night Class: Quantitative Aptitude for IBPS Clerk Prelims 2017

Quantitative Aptitude is a very important section you must prepare if you are aiming for a job in Bank or Insurance sector. These two weeks are very important as IBPS Clerk and RBI Assistant Mains are lined up. So, these 15 questions can help you practice three very important topics of Quant Section.

Directions (1-5): Use the data given below and answer the based questions. 

Bag	Red	Black	Blue	Green
A	10	15	20	25
B	20	10	25	15
C	25	20	15	10
D	15	25	10	20

Q1. Find the difference between the probabilities of selecting 2 blue balls from B to that of selecting 2 blue balls from C.
(a) 13/161
(b) 14/171
(c) 15/171
(d) 16/171
(e) 13/171


Q2. Find the ratio of probability of selecting a red ball from bag A, B, C and D. 
(a) 2 : 4 : 5 : 3
(b) 2 : 3 : 4 : 5
(c) 5 : 4 : 3 : 2
(d) 3 : 4 : 5 : 2
(e) None of these


Q3. Find the probability of selecting 1 red, 1 blue and 1 black ball from bag B. 
(a) 125/8211
(b) 135/4826
(c) 145/1482
(d) 155/8211
(e) 121/1482


Q4. Find the probability of selecting the 3 blue balls from Bag A. 
(a) 57/391
(b) 57/782
(c) 53/391
(d) 37/391
(e) 11/72


Q5. Find the ratio of total number of blue and black balls together in bag A and D. 
(a) 1 : 1
(b) 1 : 2
(c) 2 : 1
(d) 7 : 5
(e) 4 : 3


Q6. CP of 20 article is same as the SP of 15 article, find the profit percentage. 
(a) 33 ⅓%
(b) 25%
(c) 20%
(d) 30%
(e) 50%


Q7. If the ratio of MP, SP and CP is 5 : 4 : 3. Find the ratio of discount percentage to profit percentage. 
(a) 3 : 5
(b) 5 : 3
(c) 3 : 4
(d) 4 : 3
(e) 1 : 2


Q8. The ratio of age of mother and that of son at present is 5 : 2 and after 8 year it will be 2 : 1. Find the difference between the present age of mother and that of son. 
(a) 24 year
(b) 26 year
(c) 28 year
(d) 25 year
(e) 20 year


Q9. Three successive discounts of 20%, 25% and 50% are equivalent to single discount of 
(a) 70%
(b) 75%
(c) 80%
(d) 50%
(e) 85%


Q10. Find the area of the square whose side is equal to the diagonal of a rectangle of length 4 cm and breadth 3 cm. 
(a) 25 cm²
(b) 49 cm²
(c) 84 cm²
(d) 100 cm²
(e) 50 cm²


Directions (11-15): Find the missing term in following number series.


Q11. 100,     121,     144,     169,     196,     ?
(a) 225
(b) 230
(c) 235
(d) 240
(e) 245


Q12. 6,     3,     3,     4.5,     9,     ?
(a) 22.5
(b) 20
(c) 23.5
(d) 21.5
(e) 24


Q13. 3,     4,     10,     33,     136,     ?
(a) 685
(b) 695
(c) 775
(d) 705
(e) 675


Q14. 441,     484,     529,     576,     625,     ?
(a) 676
(b) 678
(c) 680
(d) 682
(e) 684


Q15. 1,     6,     21,     66,     201,     ?
(a) 606
(b) 609
(c) 618
(d) 627
(e) 636