IBPS Clerk Numerical Ability Practice Session Set 1

Directions (1-5) Find the approximate value of Following:
1) 234÷17+15.3x 18-13 x 3.7
a) 250
b) 220
c) 240
d) 230
e) 260

2) 12591÷39.8+933÷13-12.86 x 14.2+ 135 =?
a) 340
b) 330
c) 325
d) 350
e) 355

3) 33% of 1235+917÷12 -129% of 765+682
a) 160
b) 180
c)206
d)210
e) 225

4) 119% of 1190 +33% of 125 -97% of 813=?
a) 620
b) 700
c) 675
d) 725
e) 625

5) 12⅟4% of 1379+7% of 320-23% of 490=?
a) 68
b) 73
c) 80
d) 88
e) 96

Directions (6-10):
6) The population o f 6 villages is 803, 900, 1100, 1023, 945 and 980. What is the population o f the seventh village if the average population o f the seven villages is 1000?
a) 1249
b) 1429
c) 1428
d) 1349
e) 1459

7) A cricketer scored 180 runs in the first test and 258 runs in the second. How many runs should he score in the third test so that his average score in the three tests would be 230 runs? [BankP01991]
a) 219
b) 242
c) 334
d) 464
e) None o f these

8) The average salary of 20 workers in an office is Rs 1900 per month. If the manager's salary is added, the average becomes Rs 2000 per month. The manager's annual salary (in Rs) is:
a) 24000
b) 25200
c) 45600
d) 48000
e) None of these

9) The age of a father 10 years ago was thrice the age of his son. Ten years hence, the father's age will be twice that of his son. The ratio of their present ages is?
a) 8:5
b) 7:3
c) 5:2
d) 9:5
e) 6:5

10) 10 years ago Chandravati's mother was 4 times older than her daughter. After 10 years, the mother will be twice older than the daughter. The present age of Chandravati is?
a) 5 years
b) 10 years
c) 20 years
d) 30 years
e) 15 years

1. C
2. A
3. B
4. C
5. C
6. (A) Population of seventh village = 7x1000-(803-900+1100+1023+945+980) = 1249

7. (D) Let the runs he should score in third test be Then,
(180 + 258 + x)/3 = 230
x=252.

8. (D) Total monthly salary of 21 personnels = Rs (21 x 2000) = Rs 42000.
Total monthly salary o f 20 personnels = Rs(20 x 1900) = Rs38000.
Monthly salary of the manager = Rs 4000.
Annual salary of the manager = Rs 48000.

9. (B) Present ages of father and his son are 70 and 30 years respectively.
Ratio = 7:3

10. C