Quantitative Aptitude Practice Questions Bank/Insurance Exams (10 – 03 – 2018)

Mentor for Bank Exams

Quantitative Aptitude Practice Questions (10 – 03 – 2018)
Directions: Study the following information carefully and answer the question given beside:
The table below reflects the preferences of people who like to visit different brands of food chain restaurants, as found by a survey conducted at Connaught Place, New Delhi on a weekend.

The number in each cell represents the number of poeple who prefer different types of restaurants. The restaurant in the row represents the first preference and the restaurant in the column represents the second preference Ex. Row 1, column 1 = 760 means that there are 760 people whose first and only preference is Dominoz. Row 1, column 2 = 525 means there are 525 poeple whose first preference is Dominoz and the second preference is Pizzahut.
1. The number of poeple whose first preference is either Goli or McD and second preference is either KFC or Box8 is approximately what percentage of the poeple whose first and only preference is Dominoz?
a) 21%
b) 31%
c) 41%
d) 60%
e) 34%
2. What is the total number of poeple who prefer only one brand of restaurants?
a) Less than 760
b) 1528
c) 970
d) Can’t be determined
e) None of these
3. If a fee of Rs. 10 is collected from every person who prefers restaurants of more than one brand and also prefers Dominoz over other brands, while a fee of Rs. 8 is collected from those whose second preference is Dominoz and Rs. 5 is collected from those who prefer only Dominoz, then what is the total fee amount collected?
a) ₹ 42,008
b) ₹ 49,606
c) ₹ 55,684
d) Data Inadequate
e) None of these
4. If the popularity of a brand of restaurant is measured by the number of poeple who like it as their first preference and if the poeple like only restaurants that are either their first or second preference, then approximately by what percentage is the number of poeple who like the most popular brand of restaurants more than the number of poeple who like the least popular brand of restaurants?
a) 200%
b) 300%
c) 400%
d) 700%
e) 600%
5. What is the difference in the number of poeple whose first preference is either Dominoz or Others and those whose first preference is Subway?
a) 1310
b) 2371
c) 2480
d) 1810
e) None of these
Directions (6 – 10): Study the following information carefully and answer the question given beside:
The chart below shows the percentage of different type of cars or vehicles used by Ola cabs in different years

6. If the total number of cars used by Ola cabs in 2014 and 2016 was 12 lakhs and 15 lakhs respectively, then what is the percentage increase in the number of Mini cars used by Ola cabs from 2014 to 2016?
a) 0%
b) 20%
c) 25%
d) 30%
e) None of these
7. If the total cars used by Ola cabs in the year 2016 was twice that in the year 2012, then how much is use of Micro cars change from 2012 to 2016?
a) It decreased by approximately 15%
b) It increased by approximately 15%
c) It increased by approximately 45%
d) Can’t be determined
e) None of these
8. If the total cars used by Ola cabs, which was 37 lakhs in 2012, continuously increased by 10% every successive year, then by what percent did the use of Sedan increases from 2012 to 2016?
a) 0%
b) 14.64%
c) 46.41%
d) 33.1%
e) None of these
9. The total cars used by Ola cabs in the year 2015 was 1.3 times of that in the year 2013. If the number of Sedan cars used in the year 2015, were 52,000 then how many Mini cars were used in the year 2013?
a) 50,000
b) 70,000
c) 65,000
d) 62,000
e) None of these
10. Which of the following statements is definitely true?
a) The use of Ola auto is increased continuously over the given period.
b) For any of the given years, twice the use of Mini cars was more than that of Micro cars.
c) If the total cars used by Ola in all the years was the same, then the highest percentage increase in the use of any vehicle over that of the previous year for any of the years during the given period, was recorded by Ola Auto.
d) All of the above
e) None of the above

Solutions:
1. B) We need to find out the number of people whose 1st preference is either Goli or McD and whose 2nd preference is either KFC or Box8.
This means we need to count all those people whose 1st preference is Goli and 2nd preference is either KFC/Box8 or all those whose 1stpreference is McD and 2nd preference is KFC/Box8.
1st Preference
2nd Preference
No. of People
Goli
KFC
74
Goli
Box8
53
McD
KFC
43
McD
Box8
68
Total number of people satisfying this criteria is 238
Total number of people whose 1st and only preference is Dominoz = 760
Therefore Required% = 238/760 * 100 = 31.3 ≈ 31%
2. B) The fastest way to solve it, is to count all the number along the diagonal as given below in the table
Dominoz
Pizzahut
Subway
Goli
McD
KFC
Box8
Others
Dominoz
760
Pizzahut
214
Subway
152
Goli
112
McD
112
KFC
72
Box8
83
Others
23
i.e. 760 + 214 + 152 + 112 + 112 + 72 + 83 + 23 = 1528
3. A) Number of people whose 1st preference is Dominoz (A) = 525 + 311 + 440 + 590 + 200 + 370 + 68 = 2504
No. of people whose 2nd preference is Dominoz (B) = 892 + 222 + 151 + 127 + 63 + 132 + 59 = 1646
No. of people who only prefer Dominoz (C) = 760
Amount collected from A = 2504 × 10 = 25040
Amount collected From B = 1646 × 8 = 13168
Amount collected from C = 760 × 5 = 3800
Total amount collected = 25040 + 13168 + 3800 = 42008
4. C) By observation we know that the most popular restaurant is Dominoz and the least popular is Others.
Total number of people likes Dominoz = 760 + 525 + 311 + 440 + 590 + 200 + 370 + 68 + 892 + 222 + 151 + 127 + 63 + 132 + 59 = 4910
(Count all 1st preference and 2nd preference as well as only preference)
Total no. of people who like Others = 68 + 74 + 118 + 63 + 69 + 132 + 74 + 23 + 59 + 88 + 53 + 48 + 68 + 31 + 29 = 997
Difference in Dominoz and Others = 3913
Therefore required% = 3913/997 * 100 = 392.4 ≈ 400%
5. B) 1st Preference is Dominoz = 760 + 525 + 311 + 440 + 590 + 200 + 370 + 68 = 3264
1st Preference is Others = 59 + 88 + 53 + 48 + 68 + 31 + 29 + 23 = 399
those whose 1st preference Dominoz and Others (A)= 3264 + 399 = 3663
1st preference is Subway (B)= 222 + 498 + 152 + 76 + 112 + 61 + 53 + 118 = 1292
   Reqd difference = 3663 1292 = 2371

6. C) It can be observed from the line graph beside, that the percentage use of Mini in 2014 and 2016 is the same, i.e., 15%. Hence, the percentage increase in the use of Mini cars from 2014 to 2016 is the same as the percentage increase in the total use
From 2014 to 2016 = (15 – 12)/12 * 100 = 25%
7. C) Let the total cars used by Ola cabs in 2012 = 100

8. C) Here the actual value of the total cars used by Ola in 2012 is not important
Let the total cars used by Ola in 2012 be 100
Total use in 2016 = 100 × 1.1 × 1.1 × 1.1 × 1.1 = 146.41
As it is observed that the percentage of Sedan cars is same in 2012 and 2016 (i.e. 15%), then the increase in the use of Sedan cars be from 100 to 146.41 ie. 46.41%
9. A) In the year 2015, number of Sedan cars = 20% of total cars.
If 20% ≡ 52,000 then, 100% is
52000/20 * 100 = 260000
Hence, total cars used in 2015 = 2.6 lakhs
  Total cars used by Ola cabs in 2013 = 2.6/1.3 = 2lakhs
  Number of Mini cars used in 2013 = 25% of 2 lakhs = 50,000
10. C) As the total use of cars is not given for any of the years, statement A may or may not be true.
In the year 2013, twice the use of Mini cars was exactly equal to that of Micro cars. In all the other years it's always less. Hence statement B is false.
Statement C is definitely true as in 2012, the percentage use of Ola auto was 5% and in 2013, it was 10%, which is an increase of 100% (as twice of 5)