Directions (Q. 1 –5): In the following number series one number is wrong. Find out the wrong number.
1. 267, 263, 251, 230, 203, 167
1) 251
2) 263
3) 203
4) 230
2. 135, 45, 18, 10, 6, 6
1) 10
2) 6
3) 18
4) 135
5) 45
3. 45, 48. 5, 55.5, 65, 80, 97.5
1) 48.5
2) 65
3) 97.5
4) 55.5
5) 80
4. 856, 452, 250, 149, 98, 73.25
1) 98
2) 149
3) 856
4) 73.25
5) 50
5. 739, 758, 720, 737, 705, 718, 688
1) 739
2) 720
3) 688
4) 705
5) 718
Directions (Q. 6 – 10): What value should come in the place of question mark (?) in the following questions?
6. sqroot(729) + 5^2 = ? × 13
1) 4
2) 8
3) 6
4) 2
5) 3
7. (232 % of 585) ÷ 150 = ?
1) 8
2) 9.048
3) 12
4) 10.148
5) 13.144
8. 9845 = 5620 + 65 × ?
1) 65
2) 60
3) 55
4) 58
5) 50
9. 134 × 17 = [? × 40] + 177
1) 54
2) 50.525
3) 52.525
4) 45
5) 48
10. 250/15 * 300/20 / 25/100 = ?
1) 1000
2) 800
3) 1200
4) 950
5) 1100
Answers:
1. 4
The series is:
267 – 4 = 263
263 – (4 + 8) = 251
251 – (12 + 8) = 231; not equal to 230
231 – (20 + 8) = 203
203 – (28 + 8) = 167
2. 1;
3. 2
The series is:
45 + 1 × 3.5 = 48.5
48.5 + 2 × 3.5 = 55.5
55.5 + 3 × 3.5 = 66: ; not equal to 65
66 + 4 × 3.5 = 80
80 + 5 × 3.5 = 97.5
4. 1
The series is:
856/2 + 24 = 452
452/2 + 24 = 250
250/2 + 24 = 149
149/2 + 24 = 98.5; not equal to 98
98.5/2 + 24 = 73.25
5. 4
6. 1
? = (27 + 25)/13 = 4
7. 2
? = (232 * 585)/100 / 150 = 9.048
8. 1
? = (9845 - 5620)/65 = 65
9. 3
? = [(134 * 17) - 177]/40 = 52.525
10. 1
? = 250/15 * 300/20 * 100/25 = 1000