IBPS PO Prelims 2021 - Quantitative Aptitude

1.		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%

2.		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

3.

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

4.

Directions(21-25): Read the following data carefully and answer the questions given below:

There are 6300 students in Manipur University in the academic year 2020. The ratio of the boys to the girls in the University is 5 : 4. All the students are enrolled in different indoor activities (Chess, Carom, Debating, Painting, and Quiz) and one student is enrolled in only one indoor activity. The number of boys enrolled in the Painting is 621. The ratio of the number of boys who enrolled in Chess to the number of boys who enrolled in Carom is 5 : 3. 36% of the students are enrolled in Quiz. The number of boys enrolled in Debating is 25% of the total number of boys. The number of girls enrolled in Quiz is 640 which is 150 less than the number of girls enrolled in Carom. The number of girls enrolled in Chess is 186 more than the number of boys enrolled in the same activity. The total number of students enrolled in Painting is 816.

Find the percentage of students of the university who are enrolled in Chess. (approximately)

10%

20%

15%

25%

None of the above

5.		R, S and T started a business by investing Rs. 25000, Rs. 15000 and Rs.30000 respectively. If the total profit earned is Rs. 58800 and it is decided that one-third of the profit will be divided into their investment ratio and rest of the amount will be invested in another work, then what is the share of T?

4200

8000

7400

8400

None of these

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.

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer.

I. x2 - 12x + 35 = 0

II. y2 - 25y + 126 = 0

x > y

x < y

x ≥ y

x ≤ y

x = y or relationship between x and y cannot be established.

8.		The male workers are approximately what percent of the total workers of five companies?

45%

42%

38%

52%

48%

9.		The female workers of five companies are how much percent more than the male workers of five companies?

3.33%

8.5%

12.5%

6.25%

16.66%

10.

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer.

I. x2 – 35x + 294 = 0

II. y2 – 68y + 1140 = 0

x > y

x < y

x ≥ y

x ≤ y

x = y or relationship between x and y cannot be established.