# (Download) SSC CHSL: Data Entry Operator & LDC Exam (Numerical Aptitude) Solved Paper: Held on 27.11.2010

## Staff Selection Commission

Data Entry Operator Exam Held on - 27-11-2010

## Numerical Aptitude

**1. A sailor goes 12 km downstream in 48 minutes and returns in 1 hour 20 minutes. The speed of the sailor in still water is:**

(a) 12 km / hr

(b) 12.5 km / hr

(c) 13 km / hr

(d) 15 km / hr

**2. The price of sugar is increased by 25%. If a
family wants to keep its expenses on sugar
unaltered, then the family will have to reduce
the consumption of sugar by:
**(a) 20%

(b) 21%

(c) 22%

(d) 25%

**3. A sum of money amount to Rs. 850 in 3 years
and to Rs. 925 in 4 years at some rate of
simple interest. The sum is:
**(a) Rs. 550

(b) Rs. 600

(c) Rs. 625

(d) Rs. 700

**4. The average of seven consecutive positive
integers is 26. The smallest of these integers
is:
**(a) 21

(b) 23

(c) 25

(d) 26

**5. Due to an increase of 50% in the price of
eggs, 4 eggs less are available for Rs. 24.
The present rate of eggs per dozen is:
**(a) Rs. 24

(b) Rs. 27

(c) Rs. 36

(d) Rs. 42

**6. Next number of the sequence 2, 9, 28, 65,
126, ______ is :
**(a) 195

(b) 199

(c) 208

(d) 217

**7. Which of the following successive discount
series is the best of all for a customer?
**(a) 30%, 20%, 10%

(b) 25%, 20%, 15%

(c) 30%, 10%, 15%

(d) 25%, 15%, 10%

**8. What price should a shopkeeper mark on an
article costing him Rs. 200 to gain 35% after
allowing a discount of 25% ?
**(a) Rs. 270

(b) Rs. 300

(c) Rs. 330

(d) Rs. 360

**9. Total weekly emoluments of the workers of a
factory is Rs. 1534. Average weekly
emolument of a worker is Rs. 118. The number
of workers in the factory is:
**(a) 16

(b) 14

(c) 13

(d) 12

**10. The length and breadth of a rectangle are
increased by 20% and 25% respectively. The
increase in the area of the resulting rectangle
will be:
**(a) 60%

(b) 50%

(c) 40%

(d) 30%