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

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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%


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