QUANTITATIVE APTITUDE PRACTICE TEST
Directions(15): What will come in the place of the question mark (?) in the following number series?1) 12 30 120 460 ? 2730
a)1368
b)1265
c)1888
d)1634
e)1089
2) 1 6 36 240 1960 ?
a)19660
b)3680
c)36800
d)19600
e)None of these
3) 1548 516 129 43 ?
a)11
b)10.75
c)9.5
d)12
e)None of these
4) 12 12 18 45 180 1170 ?
a)12285
b)10530
c)11700
d)12870
e)7605
5) 40280625 732375 16275 465 18.6 1.24 ?
a)0.248
b)0.336
c)0.424
d)0.512
e)0.639
Directions(610): Study the following table carefully and answer the questions that follow.
Monthly Expenditure (In Thousand Rs.) By Five persons On Rent, Food, Children's Education, Clothes and Travelling
Expenditure
Person

Rent

Food

Children’s
Education

Clothes

Travelling

A

12.4

4.8

7.5

5.4

4.5

B

6.0

7.8

12.4

12.6

5.8

C

5.6

6.4

14.6

6.4

5.3

D

13.6

7.8

12.5

16.4

9.5

E

14.4

8.4

13.2

7.5

7.4

6)What is the average expenditure of person C on all the five commodities together?
a)Rs.6560
b)Rs.7660
c)Rs.7560
d)Rs.7440
e)None of these
7)Expenditure of which person on all the five commodities together is second highest?
a)A
b)B
c)C
d)D
e)E
8)What is the respective ratio between the expenditure of person A on food and the expenditure of person E on clothes?
a)16:25
b)17:25
c)25:17
d)14:25
e)None of these
9)Total expenditure on rent by all the persons together is what percent of expenditure of D on children's education?
a)430
b)425
c)410
d)416
e)420
10)What is the difference between the expenditure of person B on Travelling and the expenditure of person A on food?
a)Rs.1000
b)Rs.1200
c)Rs.1500
d)Rs.1600
e)None of these
Answer key
2.a)
3.b)
4.a)
5.a)
6.b)
7.e)
8.a)
9.d)
10.a)
Solution
12
(12 × 6)  (7 × 6) = 30
(30 × 5)  (6 × 5) = 120
(120 × 4)  (5 × 4) = 460
(460 × 3)  (4 × 3) = 1368
(1368 × 2)  (3 × 2) = 2730
2.The given series is:
1
(1 × 2) + (2 × 2) = 6
(6 × 4) + (4 × 3) = 36
(36 × 6) + (6 × 4) = 240
(240 × 8) + (8 × 5) = 1960
(1960 × 10) + (10 × 6) = 19660
3.The given series is:
1548
(1548 ÷ 3) = 516
(516 ÷ 4) = 129
(129 ÷ 3) = 43
(43 ÷ 4) = 10.75
4.The given series is:
12
(12 × 1) = 12
(12 × 1.5) = 18
18 × (1 + 1.5) = 18 × 2.5 = 45
45 × (1.5 + 2.5) = 45 × 4 = 180
180 × (2.5 + 4) = 180 × 6.5 = 1170
1170 × (4 + 6.5) = 1170 × 10.5 = 12285
5.The given series is:
(40280625 ÷ 55) = 732375
(732375 ÷ 45) = 16275
(16275 ÷ 35) = 465
(465 ÷ 25) = 18.6
(18.6 ÷ 15) = 1.24
(1.24 ÷ 5) = 0.248
6.Required average expenditure
= [(5.6 + 6.4 + 14.6 + 6.4 + 5.3)/5] × 1000
= Rs.7660
7.Total expenditure on five commodities:
A = (12.4 + 4.8 + 7.5 + 5.4 + 4.5) × 1000 = Rs.34600
B = (6 + 7.8 + 12.4 + 12.6 + 5.8) × 1000 = Rs.44600
C = Rs.38300
D = (13.6 + 7.8 + 12.5 + 16.4 + 9.5) × 1000 = Rs.59800
E = (14.4 + 8.4 + 13.2 + 7.5 + 7.4) × 1000 = Rs.50900
8.Required ratio = 4.8 : 7.5 = 16 : 25
9.Total expenditure on rent
= (12.4 + 6 + 5.6 + 13.6 + 14.4) thousand
= Rs.52 thousand
Required% = (52/12.5) × 100 = 416
10.Required difference = (5800  4800) = Rs.1000
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