Dear Aspirants, Our IBPS Guide team is providing new series of Quantitative Aptitude Questions for IBPS PO Prelims 2021 so the aspirants can practice it on a daily basis. These questions are framed by our skilled experts after understanding your needs thoroughly. Aspirants can practice these new series questions daily to familiarize with the exact exam pattern and make your preparation effective.
Missing number series
Directions (01-05): What value should come in the place of (?) in the following number series?
1) 8, 17, 53, 134, 278, ?
A.478
B.487
C.496
D.503
E.512
2) 4, 3, 3, 4, 9, ?
A.28
B.32
C.36
D.42
E.48
3) 118, 60, 32, 20, 18, ?
A.16
B.25
C.32
D.12
E.20
4) 26, 27, 29, 32, ?, 41
A.40
B.38
C.32
D.36
E.39
5) 2880, 480, 96, 24, 8, ?
A.4
B.6
C.2
D.16
E.12
Profit and loss
6) By selling a mobile after offering the discount of 25%, a profit of 30% is made. Find the cost price of the mobile, if the marked price of the mobile is Rs.7800.
A.Rs.7000
B.Rs.6500
C.Rs.5000
D.Rs.4500
E.None of these
Mensuration
7) The radius of two cylinders are in the ratio of 8: 13 and the curved surface area of those two cylinders are in the ratio of 5: 13. What is the ratio of their volumes?
A.25: 24
B.40: 169
C.24: 25
D.169: 40
E.None of these
Ages
8) Ratio of the ages of A, B and C is 4:3:7 and after 8 years, the ratio of the ages of A and B is 16:13. What is the present age of C?
A.35 years
B.28 years
C.42 years
D.49 years
E.Cannot be determined
SI AND CI
9) Anu gave Rs.6000 to Anil for 2 years and Rs.8000 to Sanu for 4 years on simple interest at the same rate of interest and she received a total interest of Rs.4400 from Anil and Sanu. Find the rate of interest.
A.5%
B.10%
C.15%
D.20%
E.None of these
Percentage
10) The ratio of Sanju’s and Manu’s income is 5: 6. If Manu’s income is increased by 25%, then his income will be Rs.37500. What is the income of Sanju?
A.Rs.20000
B.Rs.25000
C.Rs.30000
D.Rs.35000
E.None of these
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Answers :
1) Answer: D
8 + 32 = 17
17 + 62 = 53
53 + 92 = 134
134 + 122 = 278
278 + 152 = 503
2) Answer: C
4 * 1 – 1 = 3
3 * 2 – 3 = 3
3 * 3 – 5 = 4
4 * 4 – 7 = 9
9 * 5 – 9 = 36
3) Answer: B
(118/2) + 1 = 60
(60/2) + 2 = 32
(32/2) + 4 = 20
(20/2) + 8 = 18
(18/2) + 16 = 25
4) Answer: D
26 + 1= 27
27 + 2 = 29
29 + 3 = 32
32 + 4 = 36
36 + 5 = 41
5) Answer: A
2880/6 = 480
480/5 = 96
96/4 = 24
24/3 = 8
8/2 = 4
6) Answer: D
Marked price = 7800
Selling price = 7800 * 75/100 = 5850
Cost price = 5850*100/130
Cost price = Rs. 4500
(OR)
Cost price = 100/(100 + P%) * (100 – Discount%)/100 * MP
= 100/(100 + 30) * (100 – 25)/100 * 7800
= Rs.4500
7) Answer: B
R1/R2 = 8/13
Hence (2∏R1h1)/(2∏R2h2) = 5/13
=> h1/h2 = 5/13 * 13/8 = 5/8
Volume1/Volume2 = ∏R12h1/∏R22h2
= 8/13 * 8/13 * 5/8 = 40/169
8) Answer: C
Present age of A = 4x
Present age of B = 3x
Present age of C = 7x
(4x + 8)/(3x + 8) = 16/13
48x + 128 = 52x + 104
x = 6
Present age of C = 7 * 6 = 42 years
9) Answer: B
SI = Pnr/100
(6000 * 2 * r)/100 + (8000 * 4 * r)/100 = 4400
=> r = 10%
10) Answer: B
Income of Sanju = 5x and Income of Manu = 6x
6x * 125/100 = 37500
=> x = 5000
Sanju’s income = 5x = Rs.25000
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