IBPS PO Prelims 3 oct 2020 Questions and Answers Detailed Explanation
MOST IMPORTANT previous year question answers - 1 EXERCISES
The following question based on IBPS PO topic of previous year question answers
(a) Rs. 65
(b) Rs. 80
(c) Rs. 100
(d) Rs. 120
e) None of these
The correct answers to the above question in:
Answer: (c)
Cost of per pen= $400/80$
= 5 Rs/pen
Prot on 40 pens(at 60% prot)
= 5×40×60%= 120 Rs
Profit on remaining pens(at 20% profit)
= 5×40×20%= 40 Rs
Total profit on All the pens(at 15% profit)
= 5×80×15%=60
Required difference= (120+40)-60
=100 Rs.
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Read more ibps po prelims 3 oct 2020 Based Previous Year Questions and Answers
Question : 1
The present age of B will be half of A's age 4 years hence and double of A's age 5 years ago, then what is the present age of B?
a) 6 years
b) 4 years
c) 8 years
d) 12 years
e) None of these
Answer »Answer: (a)
Let the present ages of A and B be a years and b years, then
According to question
b = $\text"(a+4)"/2$ = 2(a – 5)
⇒ (a + 4) = 4(a – 5)
⇒ (4a – a) = 4 × 5 + 4 = 24
⇒ 3a = 24
⇒ a = 8
Hence, the present age of B = b = 2(a – 5) = 2(8 – 5)
= 6 years.
Question : 2
A started a business with a certain capital. After 3 months A left the business and B joins the business and remains in business. If the ratio of the profitt at the end of the year is 5 : 6 and the initial investment of A is Rs. 6000, then the investment of B is
a) Rs. 1800
b) Rs. 2400
c) Rs. 3600
d) Rs. 4800
e) None of these
Answer »Answer: (b)
Let investment of B = Rs. x, then
According to question
(6000 × 3) : {x × (12 – 3)} = 5 : 6
⇒ 2000 : x = 5 : 6
⇒ x = 2400
Directions:
Study the following information carefully and answer the given questions.
25% of the boys and 60% of the girls from a college participated in an event. Total number of girls in the college is equal to the number of boys, who do not participate in the event.
Question : 3
The number of girls, who participated in the event is what percent more than the number of boys, who participated in the event?
a) 30%
b) 35%
c) 50%
d) 80%
e) None of these
Answer »Answer: (d)
According to the question,
(100-25)% of Boys = Total number of girls
⇒ 75% of B= G
⇒ Boys : Girls = 4 : 3
Let number of Boys & girls respectively 4x , 3x
Required% = $\text"(60% of 3x - 25% of 4x)"/\text"25% of 4x" × 100$ = 80
Directions:
Study the following information carefully and answer the questions given below.
In the table, percentage of shirts (formal and casual) sold out of the total number of shirts sold in the week and number of casual shirts sold data related to the number of shirts sold on ve week days – Monday, Tuesday, Wednesday, Thursday and Friday are given.
Total number of shirts sold in the week = x
| Day | Percentage of total shirts sold | Number of casual shirts sold |
| Monday | 14% | 32 |
| Tuesday | 16% | 24 |
| Wednesday | 12% | 28 |
| Thursday | 22% | 56 |
| Friday | 18% | 20 |
Note: Total number of shirts sold on Saturday and Sunday together = 72
Question : 4
A number of casual shirts sold on Thursday is what per cent more than the number of formal shirts sold on Tuesday?
a) 20%
b) 50%
c) 40%
d) 37.5%
e) None of these
Answer »Answer: (c)
Total number of shirts sold on weekdays
= (14 + 16 + 12 + 22 + 18)% of x
= 82% of x
Total number of shirts sold on weekends
= (100 – 82)% of x
= 18% of x
According to the question
18% of x = 72
⇒ x = 400
Number of formal shirts sold = Total number of shirts sold – Number of casual shirts sold
| Day | Percentage of total shirts sold | Total number of casual shirts sold | Number of formal shirts sold |
| Monday | 14% | 32 | 24 |
| Tuesday | 16% | 24 | 40 |
| Wednesday | 12% | 28 | 20 |
| Thursday | 22% | 56 | 32 |
| Friday | 18% | 20 | 52 |
Required percentage = $\text"56-40"/40 × 100$ = 40%
Question : 5
40% of casual shirts sold and 25% of formal shirts sold on Friday of brand X, then the number of shirts sold of brands other than X on Friday is
a) 21
b) 31
c) 41
d) 51
e) None of these
Answer »Answer: (d)
Total number of shirts sold on weekdays
= (14 + 16 + 12 + 22 + 18)% of x
= 82% of x
Total number of shirts sold on weekends
= (100 – 82)% of x
= 18% of x
According to the question
18% of x = 72
⇒ x = 400
Number of formal shirts sold = Total number of shirts sold – Number of casual shirts sold
| Day | Percentage of total shirts sold | Total number of casual shirts sold | Number of formal shirts sold |
| Monday | 14% | 32 | 24 |
| Tuesday | 16% | 24 | 40 |
| Wednesday | 12% | 28 | 20 |
| Thursday | 22% | 56 | 32 |
| Friday | 18% | 20 | 52 |
The number of shirts sold of brand X on Friday
= 40% of 20 + 25% of 52
= 8 + 13 = 21
Hence, the required number of shirts sold
= (20 + 52) – 21
= 72 – 21 = 51.
Question : 6
What is the ratio of the number of casual shirts sold on Monday and Wednesday together and a number of formal shirts sold on Tuesday and Thursday together?
a) 4 : 3
b) 3 : 4
c) 5 : 3
d) 6 : 5
e) None of these
Answer »Answer: (e)
Total number of shirts sold on weekdays
= (14 + 16 + 12 + 22 + 18)% of x
= 82% of x
Total number of shirts sold on weekends
= (100 – 82)% of x
= 18% of x
According to the question
18% of x = 72
⇒ x = 400
Number of formal shirts sold = Total number of shirts sold – Number of casual shirts sold
| Day | Percentage of total shirts sold | Total number of casual shirts sold | Number of formal shirts sold |
| Monday | 14% | 32 | 24 |
| Tuesday | 16% | 24 | 40 |
| Wednesday | 12% | 28 | 20 |
| Thursday | 22% | 56 | 32 |
| Friday | 18% | 20 | 52 |
The number of casual shirts sold on Monday and Wednesday together
= 32 + 28 = 60
The number of formal shirts sold on Tuesday and Thursday together
= 40 + 32 = 72
Hence, the required ratio = 60 : 72
= 5 : 6
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IBPS PO Prelims 3 oct 2020
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