SBI Clerk 2018: Quantitative Aptitude Quiz for Prelims – 8

Hello and welcome to exampundit. Here is a set of Quantitative Aptitude Quiz for Prelims exam of SBI Clerk 2018.

1) A wholesaler sells a good to a retailer at a profit of 5% and the retailer sells it to a customer at a profit of 10%. If the customer pays Rs. 2,000, what had it cost (in Rs) the wholesaler?
a) 1731.6
b) 3210.6
c) 1931.6
d) 2310.6
e) None of these

Answer & Solutions

Option: A

Explanation: Sp of retailer = Rs. 2020
Cp of retailer = Rs. 20200/11
Sp of wholesaler = Rs. 20200/11
Cp of wholesaler = Rs. 400000/ 231 ~ Rs. 1731.6

2) The average price of 3 diamonds of same weights is Rs. 5 crore, where the average price of the two costliest diamonds is double the price of the cheapest diamond. The price of the cheapest diamond is :
a) 3 crore
b) 5 crore
c) 1.66 crore
d) 2.5 crore
e) None of these

Answer & Solutions

Option: A

Explanation: Let the price of A>B>C
Then A+B/ 2 = 2C
A+B = 4C
Now, A+B+C = 5*3 = 15 crore
5C= 15 crore
C= 3 crore

3) A businessman undertook a work to complete in 60days. But just after 20 days he observed that only 1/5th of the project work had been completed. To complete the work in time (i.e., in rest days) minimum how many workers he had to increase, if there were initially 75 workers were deployed for the task?
a) 25
b) 50
c) 75
d) Can’t be completed
e) None of these

Answer & Solutions

Option: C

Explanation: Work done = 1/5
Remaining = 4/5
4*(20*75) = 40*x
x = 150
So, 75 men should be increased

4) In a race of 3000m, Monu beats Nishit by 600m and Nishit in a race of 2000m beats Olive by 600m. In a 1 km race by how much distance Monu beats Olive?
a) 440 m
b) 560 m
c) 800 m
d) 400 m
e) None of these

Answer & Solutions

Option: A

Explanation: Ratio of speed of M: N: O = 50:40:28
So Monu beats Olive by 440 m in 1 km race

5) Four isosceles triangles are cut off from the corners of a square of area 400 m2. Find the area of new smallest square (in m2) :
a) 200√2
b) 200/√2
c) 200
d) 100√2
e) None of these

Answer & Solutions

Option: C

Explanation: If four isosceles triangles are cut from the corners of a square, then 50% area has been cut out.
So the remaining area = 50% of 400 = 200

Directions (Q. 6-10): These questions are based on the following data:

Percentage of literate population with respect to the population of the state for different states over the years

 Year 2017 2018 2019 2020 2021 2022 State ASSAM 67 72 69 78 79 82 BIHAR 82 81 85 85 87 88 WEST BENGAL 78 81 84 87 89 91 TRIPURA 56 65 69 71 75 77 MAHARASHTRA 89 93 94 95 95 97 UTTAR PRADESH 85 88 91 93 95 96

6) Populations of WEST BENGAL in 2017 and 2018 were in the ratio 2:3. What was the ratio of their literate population?
a) 51:82
b) 15:18
c) 9:13
d) 26:27
e) None of these

Answer & Solutions

Option: E

Explanation: Ratio = (2*78%): (3*81%) = 52:81

7) In 2018, all the six states had equal population of 12 lakhs. What was the average literate population of all the states in that year?
a) 9,88,000
b) 10,56,000
c) 9,60,000
d) 10,28,000
e) None of these

Answer & Solutions

Option: C

Explanation: 1202000*480/600 = 960000

8) Population of state TRIPURA in 2018 and 2021 was equal. Approximately what was the percentage increase in literate population from 2018 to 2021?
a) 17
b) 15
c) 16
d) 18
e) 19

Answer & Solutions

Option: B

Explanation: (75-65)*100/65 ~ 15%

9) Population of BIHAR increased in every year by 10%. If its total population in 2019 was 10 lakhs, what was its literate population in 2021?
a) 10,52,700
b) 9,57,000
c) 11,52,400
d) Cannot be determined
e) None of these

Answer & Solutions

Option: A

Explanation: 1000000*(110/100)*(110/100)*(87/100) = 1052700

10) If the average population of all the states in 2019 was 12.5 lakhs what was the average literate population in that year?
a) 10.25 lakhs
b) 10.75 lakhs
c) 11 lakhs
d) Cannot be determined
e) None of these

Answer & Solutions

Option: D

Explanation: Here we need ratio of populations of the given states.

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