# (Download) SSC CHSL: Data Entry Operator Exam (Arithmetic) Solved Paper: Held on 02.08.2009

## Staff Selection Commission

Data Entry Operator Exam Held on - 02-08-2009

## Arithmetic

**1. Two number are in the ratio 3 : 4. The product of their H.C.F. and L.C.M. is 2028. The sum of the number is**

(a) 68

(b) 72

(c) 86

(d) 91

**2. The smallest number that must be subtracted from 1000 to make the
resulting number a perfect square is
**(a) 37

(b) 38

(c) 39

(d) 40

**3. A man at 100 grapes in 5 days. Each day, he ate 6 more grapes than those he ate on the earlier day. How many grapes did he eat on the first day?**

(a) 8

(b) 12

(c) 54

(d) 7

**4. The missing number in the sequence
5, 6, 15, ?, 89, 170, 291, is
**(a) 50

(b) 40

(c) 42

(d) 32

**5. Instead of multiplying a number by 0.72, a student multiplied it by 7.2. If his answer was 2592 more than the correct answer, then the original number was**

(a) 400

(b) 420

(c) 500

(d) 560

**6. Two pipes can fill a cistern separately in 10
hours and 15 hours. They can together fill
the cistern in
**(a) 6 hours

(b) 7 hours

(c) 8 hours

(d) 9 hours

**7. Number 1, 2, 3, 4, ……, 98, 99, 100 are multiplied together. The number of zeroes at the end of the product on the right will be equal to**

(a) 24

(b) 22

(c) 21

(d) 11

**8. A sole metallic cone is melted and recast into
a solid cylinder of the same base as that of
the cone. If the height of the cylinder is 7 cm,
the height of the cone was
**(a) 20 cm

(b) 21 cm

(c) 28 cm

(d) 24 cm

**9. A single discount equivalent to three successive discounts of 20%, 25% and 10% is**

(a) 55%

(b) 50%

(c) 48%

(d) 46%

**10. The marked price of an article is 20% more
than its cost price. A discount of 20% is given
on the marked price. In this kind of sale, the
seller bears
**(a) no gain, no loss

(b) a loss of 4%

(c) a gain of 4%

(d) a gain of 8%