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Quantitative Aptitude Quiz for SBI Clerk Prelims Day 1
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No. of Questions: 10
Total Time: 10 Minutes
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Question 1 of 10
1. Question
Dircection(15): Study the following information carefully to answer these questions
An institute having 450 employees has sent all its employees for training in one or more areas out of HRM, computer skills and financial skills. The employees are classified into two categories officers and clerks, who are in the ratio of 4:5. 10% of the officers take training only in computer skills, 16% of the clerks take training only in HRM, which is equal to the number of officers taking training only in financial skills and is equal to the 40% of the number of officers taking training only in HRM and financial skills both. 6% of the total employees take training in all of which twothird are officers. 10% of the total employees take training only in HRM and computer skills, which is five times the number of clerks taking training only in computer skills and financial skills. 10% of clerks take training only in HRM and computer skills. The number of officers taking training only in HRM is 25% of the number of clerks taking training only in HRM. 20% of the total number of employees take training only in computer skills. Number of clerk staking training in HRM and financial skills both is 20% of the total number of clerks.Total how many officers take training in HRM?
Correct
Ans: B
Incorrect
Ans: B

Question 2 of 10
2. Question
Total how many clerks take training in computer skills but not in HRM?
Correct
Ans: D
Solution:
Clerks taking training in computer skills but not in HRM = 70 +9 = 79Incorrect
Ans: D
Solution:
Clerks taking training in computer skills but not in HRM = 70 +9 = 79 
Question 3 of 10
3. Question
Total how many employees take training in financial skills but nit in HRM?
Correct
Ans: E
Solution:
Employees taking training in financial skills but not in HRM = 87 + 21 = 108Incorrect
Ans: E
Solution:
Employees taking training in financial skills but not in HRM = 87 + 21 = 108 
Question 4 of 10
4. Question
Total how many clerks take training in financial skills?
Correct
Ans: A
Solution:
Clerks taking training in financial skills = 47 + 50 + 9 + 9 = 115Incorrect
Ans: A
Solution:
Clerks taking training in financial skills = 47 + 50 + 9 + 9 = 115 
Question 5 of 10
5. Question
What percent of the total number of officers take training in computer skills but not in financial skills?
Correct
Ans: C
Solution:
Officers taking training in computer skills but not in financial skills = 20 + 20 = 40
Total number of officers = 200
Required percentage = (40/200) x 100 = 20%Incorrect
Ans: C
Solution:
Officers taking training in computer skills but not in financial skills = 20 + 20 = 40
Total number of officers = 200
Required percentage = (40/200) x 100 = 20% 
Question 6 of 10
6. Question
Ten years ago, the average age of a family of 4 members was 24 years. Two children having been born, the average age of the family is same today. What is the present age of the youngest child if they differ in age by 2 years?
Correct
Ans: C
Solution:
Ten years ago average of four members was 24 years. Presently
average age of six members is 24. Let the present age of eldest and youngest
child is x and y respectively
136+x+y/6 = 24
or x + y = 8 …(i)
Q
x – y = 2 …(ii)
On solving, x = 5 years and y = 3 years
So, Youngest child is of 3 years.Incorrect
Ans: C
Solution:
Ten years ago average of four members was 24 years. Presently
average age of six members is 24. Let the present age of eldest and youngest
child is x and y respectively
136+x+y/6 = 24
or x + y = 8 …(i)
Q
x – y = 2 …(ii)
On solving, x = 5 years and y = 3 years
So, Youngest child is of 3 years. 
Question 7 of 10
7. Question
In a twodigit numbers the digit in the unit’s place is less than twice the digit in ten’s place by 1 and the difference between the number obtained by interchanging its digit and the original number is half the number by adding 7 to original number. Then the sum of its digit is.
Correct
Ans: A
Solution:
Let the unit digit be y and ten digit be x
Then,
y = 2 x – 1 …………. (I)
Difference = 10 y + x – (10 x + y)
= 9 y – 9x
Now, 9 (y – x) = 10x + y + 7 / 2
or, 17 y – 28 x = 7 …………………………….. (II)
Solving (I) & (II) x = 4, y = 7
Number = 47
Sum = 4 + 7 = 11Incorrect
Ans: A
Solution:
Let the unit digit be y and ten digit be x
Then,
y = 2 x – 1 …………. (I)
Difference = 10 y + x – (10 x + y)
= 9 y – 9x
Now, 9 (y – x) = 10x + y + 7 / 2
or, 17 y – 28 x = 7 …………………………….. (II)
Solving (I) & (II) x = 4, y = 7
Number = 47
Sum = 4 + 7 = 11 
Question 8 of 10
8. Question
In an examination, 44% of students failed in subject A and 36% of the students failed in subject B and 18% failed in both the subjects. If 352 students passed in only one subject, then how many failed in both the subjects?
Correct
Ans: B
Solution:
TOTAL NO. OF STUDENTS PASSED IN BOTH SUBJECTS= 100
(44+3618) = 38
TOTAL PASSED IN SUBJECT A = 56
TOTAL PASSED SUBJECT B= 64
PASSED ONLY A = 5638= 18
PASSED ONLY B= 6438=26
SO 18+26= 44 = PASSED IN ONLY ONE SUBJECT
44% = 352
=> 18% = 352/44 *18 = 144Incorrect
Ans: B
Solution:
TOTAL NO. OF STUDENTS PASSED IN BOTH SUBJECTS= 100
(44+3618) = 38
TOTAL PASSED IN SUBJECT A = 56
TOTAL PASSED SUBJECT B= 64
PASSED ONLY A = 5638= 18
PASSED ONLY B= 6438=26
SO 18+26= 44 = PASSED IN ONLY ONE SUBJECT
44% = 352
=> 18% = 352/44 *18 = 144 
Question 9 of 10
9. Question
A shopkeeper mixes of 24 kg of sugar worth Rs. 35 per kg with another quality of sugar of Rs.42 per kg. By selling the mixture at Rs. 41.04 per kg, he may gain 8%. How much sugar of second quality has been added to the mixture?
Correct
Ans: A
Solution:
Actual price of the mixture = 41.04/1.08 = 38
So, 4:3
Amount of sugar of second quality added = 24*3/4 = 18Incorrect
Ans: A
Solution:
Actual price of the mixture = 41.04/1.08 = 38
So, 4:3
Amount of sugar of second quality added = 24*3/4 = 18 
Question 10 of 10
10. Question
The ratio of present ages of A and C is 7 : 9 and present age of B is equal to the average ages of A and C after 2 years. If the ratio of present age of B and age of C after four years is 6 : 7 then what will be the ratio of age of A after four years to that of present age of B?
Correct
Ans: A
Solution:
Let the ages of A and C be 7x and 9x
B = 7x + 2 + 9x + 2 / 2 = 8x + 2
Given, 8x + 2 / 9x + 4 = 6 /7
So x = 5
So, A = 35
B = 42
C = 45
So…35+4/42 = 39/42 = 13:14Incorrect
Ans: A
Solution:
Let the ages of A and C be 7x and 9x
B = 7x + 2 + 9x + 2 / 2 = 8x + 2
Given, 8x + 2 / 9x + 4 = 6 /7
So x = 5
So, A = 35
B = 42
C = 45
So…35+4/42 = 39/42 = 13:14
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