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Missing number series    Â
Directions (01 – 05): What value should come in the place of (?) in the following number series?
1) 12, 40, 106, ?, 340, 352
a) 240
b) 200
c) 210
d) 220
e) 250
2) 1, 5, 32, 48, 173, ?
a) 222
b) 516
c) 209
d) 389
e) 427
3) 340, 510, ?, 1147.5, 1721.25, 2581.875
a) 765
b) 775
c) 785
d) 795
e) 755
4) 19, 30, 63, 118, 195, ?
a) 286
b) 290
c) 294
d) 298
e) 308
5) 20, 74, 112, 136, 148, ?
a) 150
b) 156
c) 162
d) 168
e) 164
Data Interpretation
Directions (6 – 10): Study the following information carefully and answer the questions given below.
The given line graph shows the number of boys and girls in five different schools in 2018.
6) What is the ratio of the number of boys from D to number of girls from C?
a) 3: 4
b) 4: 3
c) 5: 4
d) 4: 5
e) None of these
7) Number of girls from B is approximately what percent of the total number of students from E?
a) 20%
b) 22%
c) 24%
d) 26%
e) 28%
8) What is the difference between the total number of students from C and A?
a) 280
b) 300
c) 320
d) 340
e) 360
9) What is the ratio of the average number of boys to girls from all the schools together?
a) 4:5
b) 5:4
c) 6:5
d) 7:6
e) None of these
10) What is the difference between the total number of students from D and B?
a) 120
b) 150
c) 170
d) 190
e) 210
Answers :
Directions (1-5) :
1) Answer: d)
12 * 3 + 4 = 40
40 * 2.5 + 6 = 106
106 * 2 + 8 = 220
220 * 1.5 + 10 = 340
340 * 1 + 12 = 352
2) Answer: c)
1 + 22 = 5
5 + 33 = 32
32 + 42 = 48
48 + 53 = 173
173 + 62 = 209
3) Answer: a)
340 * 1.5 = 510
510 * 1.5 = 765
765 * 1.5 = 1147.5
1147.5 * 1.5 = 1721.25
1721.25 * 1.5 = 2581.875
4) Answer: c)
19 + (1* 11) = 30
30 + (3 * 11) = 63
63 + (5 * 11) = 118
118 + (7 * 11) = 195
195 + (9 * 11) = 294
5) Answer: a)
20 + (82 – 10) = 74
74 + (72 – 11) = 112
112 + (62 – 12) = 136
136 + (52 – 13) = 148
148 + (42 – 14) = 150
Directions (6-10) :
6) Answer: c)
Required ratio = 300: 240
= 5: 4
7) Answer: b)
Required percentage = [150/(320 + 360)] * 100
= 22%
8) Answer: c)
Total number of students from A = 160 + 120 = 280
Total number of students from C = 360 + 240 = 600
Difference = 600 – 280 = 320
9) Answer: c)
Average boys = (160 + 240 + 360 + 300 + 320)/5
= 276
Average girls = (120 + 150 + 240 + 280 + 360)/5
= 230
Required ratio = 276:230
= 138:115
= 6:5
10) Answer: d)
Total number of students from B = 240 + 150 = 390
Total number of students from D = 300 + 280 = 580
Difference = 580 – 390 = 190
