IBPS PO Prelims 2021 - Quantitative Aptitude

1.		A shopkeeper purchased two types of wheat costing Rs. 220 per kg and Rs. 300 per kg. In what ratio should he mix the wheat so that he could sell the mixture at the rate of Rs. 360 per kg in order to earn the profit of 25%?

4 : 15

2 : 17

4 : 17

3 : 16

3 : 17

2.		A school has 45% girls. If 80% of girls score more than 75% marks and 70% of the boys have score more than 75% marks. If a student is selected at random and is found to have more than 75% marks, find the probability of it being a boy.

77/149

75/149

Cannot be determined

11/20

9/20

3.		The difference in the number of boys and girls who are enrolled in painting is what percentage of the total number of students who are enrolled in Debating? (approximately)

20%

34%

26%

38%

None of the above

4.		What is the respective ratio of the number of women working in the Marketing department and the number of men working in the Hr department?

3 : 4

4 : 5

7 : 5

4 : 7

9 : 4

5.		A shopkeeper wants to make a profit of 20% on an article after selling it, while he gives a cash discount of 20%. Further allows 4 more articles for free after purchase of one dozen articles to his premium customer. How much per cent above the cost price he must mark his article?

85%

90%

110%

80%

100%

6.		The total number of girls in Quiz is approximately what percent of the total number of students in Quiz?

18%

72%

62%

28%

36%

7.		A alone can complete a work in 25 days and B alone can do the same work in 20 days. A started the work and after working 7 days B joined A to finish the remaining work. In how many days, the total work will be finished?

8 days

15 days

9 days

12 days

None of these

8.		10 years ago, respective ratio of the age of mother and daughter was 4 : 1. 10 years later, the respective ratio of the age of mother and daughter will become 2 : 1. At present, what is the sum of their age?

55 years

65 years

70 years

75 years

77 years

9.

In the given question, two equations numbered l and II are given. You have to solve both the equations and mark the appropriate answer.

I. 16x2 – 32x + 15 = 0

II. 16y2 – 48y + 35 = 0

x > y

x < y

x ≥ y

x ≤ y

x = y or no relationship could be established

10.		The number of women working in the Production department of the Organisation is what percent of the total number of employees working in all the department together?

4%

6%

5%

7%

8%