(Download) SSC: DEO & LDC Exam (Numerical Aptitude) Solved Paper: Held on 28.11.2010 (1st Sitting)
Staff Selection Commission
Data Entry Operator Exam Held on - 28-11-2010 (1st Sitting)
Numerical Aptitude
1. Three taps A, B and C together can fill an
empty cistern in 10 minutes. The tap A alone
can fill it in 30 minutes and the tap B alone in
40 minutes. How long will the tap C alone
take to fill it?
(a) 16 minutes
(b) 24 minutes
(c) 32 minutes
(d) 40 minutes
2. If 1 man or 2 women or 3 boys can complete
a piece of work in 88 days, the 1 man, 1 women
and 1 boy together will complete it in
(a) 36 days
(b) 42 days
(c) 48 days
(d) 54 days
3. If the measures of one side and cone
diagonal of a rhombus are 10 cm and 16 cm
respectively, then its are in cm2 is:
(a) 60
(b) 64
(c) 96
(d) 100
4. The diameters of two cylinders, whose
volumes are equal, are in the ratio 3 : 2. Their
height will be in the ratio
(a) 4 : 9
(b) 5 : 6
(c) 5 : 8
(d) 8 : 9
5. The single discount, which is equivalent to
successive discounts of 25% and 10%, is:
(a) 35 %
(b) 34.5 %
(c) 33 %
(d) 32.5 %
6. A trader marks his goods 40% above cost
price and allows a discount of 25%. The
profit he makes, is:
(a) 15%
(b) 10%
(c) 5%
(d) 2%
7. With a 5% discount on the cost of sugar, a
buyer could purchase 2 kg more sugar for
Rs. 608. Selling price of sugar is:
(a) Rs. 15.50
(b) Rs. 15
(c) Rs. 16.50
(d) Rs. 2
8. The ratio of two numbers is 3 : 4 and their
LCM is 48. The sum of the two numbers is:
(a) 32
(b) 28
(c) 26
(d) 24
9. If 2A = 3B = 4C, then A : B : C is:
(a) 2 : 3 : 4
(b) 4 : 3 : 2
(c) 6 : 4 : 3
(d) 3 : 4 : 6
(a) Rs. 38
(b) Rs. 37
(c) Rs. 35
(d) Rs. 34
