# (Download) SSC: Combined Graduate Level Exam Paper (Numerical Aptitude) : 19-06-2011 - First Sitting

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__Exam Paper (Numerical Aptitude): 19-06-2011 - First Sitting__

**1. If multiplied a natural number by 18 and another by 21 and added the products. Which one of the following could be the sum?**

(A) 2007

(B) 2008

(C) 2006

(D) 2002

**2. If a + b – 2a + 3b – ab, then the value of (3 - 5 + 5 ÷ 3) is**

(A) 10

(B) 6

(C) 4

(D) 2

**3. A child reshapes a cone make up of clay of height 24 cm and radius 6 cm into a sphere. The radius (in cm) of the sphere is **(A) 6

(B) 12

(C) 24

(D) 48

**4. Water flows into a trank which is 200 m long and 150 m wide, through a pipe of crosssection 0.3 m × 0.2 m at 20 km/hour. Then the time (in hours) for the water level in the tank to reach 8 m is**

(A) 50

(B) 120

(C) 150

(D) 200

**5. The product of two numbers is 2028 and their H.C.F. is 13. The number of such pairs is**(A) 1

(B) 2

(C) 3

(D) 4

**6. Two equal vessels are filled with the mixtures of water and milk in the ratio of 3 : 4 and 5 : 3 respectively. If the mixtures are poured into a third vessel, the ratio of water and milk in the third vessel will be**

(A) 15 : 12

(B) 53 : 59

(C) 20 : 9

(D) 59 : 53

**7. I am three times as old as my son. 15 years hence, I will be twice as old as my son. The sum of our ages is**(A) 48 years

(B) 60 years

(C) 84 years

(D) 72 years

**8. Three bells ring simultaneously at 11 a.m. They ring at regular intervals of 20 minute 30 minutes, 40 minutes respectively. The time when all the three ring together next**

(A) 2 p.m.

(B) 1 p.m.

(C) 1.15 p.m.

(D) 1.30 p.m.

**9. A and B together can do a work in 12 days. B and together do it in 15 days. If A efficiency is twice that of C, then the day required for B alone to finish the work is**

(A) 50

(B) 30

(C) 20

(D) 15

**10. A and B can do a work in 12 days, B and C can do the same work in 15 days, C and A can do the same work in 20 days. The time taken by A, B and C to do the same work it**

(A) 5 days

(B) 10 days

(C) 15 days

(D) 20 days

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