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Quant practice set 9 for SBI PO PRELIM 2020



SBI Clerk and SBI PO Prelims exam are going to be held in the upcoming months. We have already provided you with the PDFs of many topics of Quantitative Aptitude like Simplification/Approximation, Number Series,datainterpretation.important Arithmetic questions to prepare for SBI Clerk and PO Pre exam. Practicing these questions will help you to know about the level of the questions. To increase your speed and accuracy, enhance your calculations.

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START TEST


1) Direction: Find the wrong term in the given series: 11, 25, 53, 99, 151, 221
A. 25 B. 99
C. 221
D. 53
E. 151
2) Direction: Find the wrong term in the given series: 2179, 2178, 2151, 2026, 1681
A. 2179 B. 2151 C. 2178 D. 2026
E. 1681
3) Direction: Find the wrong term in the given series: 7, 24, 92, 465, 2750, 19495
A. 24
B. 465
C. 2750
D. 7
E. 92
4) Direction: Find the wrong term in the given series: 39, 51, 63, 78, 98, 125
A. 51
B. 125
C. 63
D. 39
E. 78
5) Direction: Find the wrong term in the given series: 65520, 9360, 1560, 315, 78, 26
A. 315
B. 65520
C. 9360
D. 78
E. 1560


Direction (6-10): Study the following pie-charts carefully and answer the questions given below:

Year-wise Breakup of the number of candidates appeared for an entrance exam and Year-wise Breakup of the number of candidates who cleared the entrance exam.

Total Number of candidates appeared in the entrance exam from2007 to 2012 = 260000



















6) What was the ratio of the number of students appeared for the entrance exam in 2009 to the number of students who cleared the exam in 2007?
A. 18 : 4
B. 325:29
C. 325:24
D. 111 : 24
E. None of these
7) The total number of students appeared in the entrance exam from the year 2008 and 2011 together was what percentage of the number of students appeared from the year 2009?
A. 120%
B. 150%
C. 215%
D. 250%
E. None of these
8) what was the difference between the number of students who cleared the entrance exam in 2008 and number of students who cleared the entrance exam in 2010?
A. 1120
B. 1020
C. 960
D. 912
E. None of these
9) The total number of students who cleared the exam from all years together is what percent of the total number of students appeared for the exam in all years together?
A. 17.5%
B. 15%
C. 11.5%
D. 12.3%
E. None of these
10) What was the total number of students cleared the entrance exam in the year 2007 and 2012
together?
A. 10240
B. 15200
C. 11520
D. 11220
E. None of these

11) A sold a chair to B at a profit of 10%, B sold the chair to C for 1265 Rs. thereby making a profit of 15%, find the price at which at which A bought the chair from X if it is known that X gained 25% in the transaction.
A. 780 Rs.
 B. 973 Rs.
C. 850 Rs.
D. 1000 Rs.
E. None of these

12) The average present age of three members of a family is 50 years. A er 3 years, the son will get married then the average age of the family will be 47 years, find the age of wife of the son at the
time of marriage.
A. 25 years
 B. 27 years
C.29 years
 D.31 years
E. 33 years

13) It takes 35 seconds for a train travelling at 72 km/h to pass a bridge. If it takes 1 minute 52 seconds for the train to overtake another train of the same length, travelling at 54km/h in the same direction, find the length of the bridge.
A. 284 m B. 540 m C. 360 m
D. 420 m
E. 400 m

14) A and B working alone can do a work in 40 days and 30 days respectively. They started the work
together but B le after sometime and A finished remaining work in 5 days. Find a er how many days
from start B left the work?
A. 15 days B. 14 days C. 16 days
D. 12 days
E. 18 days

15) A received Rs. 5000 as his share out of the total profit of Rs. 12000 which he and B earned at the end of one year. If A invested Rs.100000 for 6 th h B i t d hi t f th h l h t th t i t d b B?months, whereas B invested his amount for the whole year, what was the amount invested by B?
A. 50000
B. 100000
C. 80000
D. 70000
E. None of these

SOLUTIONS:

1.The Pattern is:-
Thus, the incorrect number is 99
So option (b) is the correct answer.










2.
2179-13=2178
2178-33=2151
2151-53=2026
2026-73=1683

3.




4.
The Pattern is:-




Thus, the incorrect number is 39.
So option (d) is the correct answer.
5.
65520÷7=9360
9360÷6=1560
1560÷5=312
312÷4=78
78÷3=26

6.
Required ratio =
[(20%*260000)/(12%*32000)] =
52000/3840 ---> 325:24
7.
Required percentage = {(25+18)/20}*100 =
215%
8.
Required difference = (18 – 15)% of 32000
= 960
9.
Required percentage =
{(32000/260000)*100} = 12.30%

10.
Cleared the entrance exam in 2007 and
2012 is = {32000*(12+20)}/100 = 10240

11.
Let X bought the chair in x Rs.
Then the selling price for X = Cost price for A
X gained 25%, so his S.P = x +x/4 = 5x/4
Rs
Cost price for A = 5x/4
Now a gained 10% profit when he sold it to
B.
Selling price for A = Cost price for B
Selling price for A = 5x/4 + 5x/40 = 55x/40
C.P for B = 55x/40
Now he sold it to see in 1265 Rs.
C.P for C = Selling Price for B = 1265 Rs.
And B gained 15% profit hence
1265 – 55x/40 = (55x/40) * 15/100
By solving this equation, we get x = 800
Rs.
Now A bought the chair from X at 5x/4 Rs
1000 Rs.

12.
Total age of family before marriage of son
= 50 x 3 = 150 years
Age of family after 3 years = 150 + 3 x 3 =
159 years
Let, age of wife be ‘x’ years at time of
marriage
According to question,
159 + x = 47 x 4
x = 29 years
So option (c) is the correct answer.

13.
Speed of train in m/sec = 72 ×5/18 = 20
m/sec
Let length of train = x
Let length of bridge = y
(x + y) = 35 ×20 = 700 (1)
Speed of another train in m/sec = 54 ×5/18 =
15 m/sec
(x + x) = (60 + 52) ×(20 – 15)
2x = 112 × 5
2x = 560
x = 280
Put value of x in equation
280 + y = 700
y =700 – 280 = 420 m

14.
Assume total work unit=120
A efficiency= 120/40= 3 unit per day
B efficiency= 120/30= 4 unit per day
Remaining work finished by A in last 5
days= 3×5= 15 unit
Rest work done by both A & B= 120-
15= 105 unit
So A & B work for days= 105/(3+4)=
15 day
B left after 15 days

15.
A invested = 100000 Rs. for 6
months
Let B invested = X Rs. for 12
months
Now profit ratio of A and B =
100000 * ½ :X * 1
50000K +XK = 12000 ... (1)
Because profit of A is = 5000
50000K = 5000
K = 1/10
Put the value of K in equation
(1)
5000 +X/10 = 12000
X/10 = 7000
X = 70000
Hence, investment of B is
70000 Rs. for 1 year.
Option (d) is correct.
Alternative Method:
Now profit ratio of A and B =
100000 * ½ :X * 1 = 50000:X
Share of A can be given as =
(50000)/(50000+X) =
5000/12000
= 10/(50000+X) = 1/12000
= 50000+X = 120000
= Therefore, X = 120000-50000
= 70000 Rs.