Quantitative Aptitude for IBPS PO Prelims Exam: 19th August 2018

Directions (1- 5): What will come in place of the question mark (?) in the following
number series? 
 Q1. 8, 14, 32, 58, 124, (?)

Q2. 25, 41, 89, 169, 281, (?)

Q3. 461 474 465 478 469 (?)

Q4. 980, 516, 284, 168, 110, (?)

Solution:

Q5. 4, 5, 8, 27, 104, (?)

Q6. Out of his total income, Mr. Kapur spends 20% on house rent and 70% of the rest on house hold expenses. If he saves Rs 1,800 what is his total income (in rupees)?

Q7. There are 81 litres pure milk in a container. One-third of milk is replaced by water in the container. Again one-third of mixture is extracted and equal amount of water is added. What is the ratio of milk to water in the new mixture?

Q8. Ashok and Mohan can do a piece of work in 12 days. Mohan and Binod together do it in 15 days. If Ashok is twice as good a workman as Binod. In how much time will Mohan alone can do the work?

Solution:

Ashok is twice as good as Binod. If Binod one day work is 1 unit then Ashok’s one day work is 2 units.
2 + Mohan = 5, Mohan = 3 units
Mohan complete work in = 60/3 days= 20 days

Q9. 12 men complete a work in 18 days. 6 days after they had started working, 4 men join them. How many more days will all of them take to complete the remaining work?

Q10. Out of the three given numbers, the first number is twice the second and thrice the third. If the average of the three numbers is 154, what is the difference between the first and their third number?

Direction (11-15): What will come in place of ‘?’ in the following questions.

Q11. 3/8 of 168×15÷5+?=549÷9+235

Q12. 11×3^4+1/? of 385-1698÷6=685

Q13. (?)^2-364÷7×6+289=26×(121+72)

Q14. 1/(4913)^(1/3) of 1411+583×?=16 2/3% of 14490

Q15. 14 2/7% of 27048 ÷ √576=(?)^(1/2)