﻿ SSC - CGL Quantitative Aptitude Solved Question Paper 2011 | Previous Year Papers | Zigya

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Quantitative Aptitude

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# SSCCGL Quantitative Aptitude Solved Question Paper 2011

#### Multiple Choice Questions

9.

A wall clock gains 2 minutes in 12 hours, while a table clock loses 2 minutes every 36 hours. Both are set right at 12 noon on Tuesday. The correct time when both show the same time next would be

• 12.30 at night, after 130 days

• 12 noon, after 135 days

• 1.30 at night, after 130 days
• 12 midnight, after 135 days

B.

12 noon, after 135 days

A wall clock gains 2 min in every 12 hours, so it would gain 6 min in 36 hours.
and table clock losses two minutes in every 36 hours.
So, in every 36 hours they difference between them is 8 min.
They will be at the same time when the difference between them is 12 hours.
Hence, 8  min = 36 hours
So, 1 min difference = Or 12 x 60 min difference in or  3240 hours is 135 days.
Hence both clocks will show same time at 12 noon after 135 days.

1093 Views

7.

There are five bells which start ringing together at intervals of 3, 6, 9, 12 and 15 seconds respectively. In 36 minutes, how many times will the bells ring simultaneously?

• 13

• 12

• 6

• 5

A.

13

L.C.M. of 3, 6, 9, 12 and 15 = 180 seconds
∴   Bells will ring together after every 180 seconds 513 Views

2.

Insert the missing number
3, 18, 12, 72, 66, 396 ?

• 300

• 380

• 350

• 390

D.

390

3 x 6 = 18
18 - 6 = 12
12 x 6 = 72
72 - 6 = 66
66 x 6 = 396
396 - 6 = 390

156 Views

3. is equal to
• • 0

• • B.

0     ∴   Expression 180 Views

5.

In four consecutive prime numbers that are in ascending order, the product of the first three is 385 and that of the last three is 1001. The largest given prime number is

• 11

• 13

• 17

• 19

B.

13

Let the four consecutive prime numbers be a, b, c and d where a < b < c < d.
∴    abc = 385  and bcd = 1001
∴     HCF = bc
(H.C.F. of 385 and 1001 is 77)
∴  bc = 77
∵   bcd = 1001 212 Views

10.

A and B started a business by investing ₹ 3,50,000 and ₹ 1,40,000 respectively. A gets 20% of the yearly profit for managing the business. Thereafter the profit is divided in the ratio of the capital. If A receives totally ₹ 38,000 more than B at the end of a year, then the profit is

• ₹ 28,000

• ₹ 2,80,000

• ₹ 1,05,000

• ₹ 70,000

D.

₹ 70,000

Let the total profit be Rs. x
Now, A gets 20% profit for managing business = Remaining profit = Thereafter, remaining profit will be distributed in the profit sharing ratio.
i.e. (350000 : 140000) = 5 : 2

∴  A's total share =  ∴   Difference
(i) - (ii) = 38000 625 Views

1.

If a3b = abc  = 180,  a, b, c are positive integers, then the value of c is

• 110

• 1

• 4

• 25

B.

1

a3b = abc = 180
⟹ a2b = bc,   ⟹   a2 = c

Go by the option take c = 1, 12 = 1
then abc = 180
12 x 180 x 1 = 180
1054 Views

4.

The sum of 112 + 122 + .......+212 = ?

• 2926

• 3017

• 3215

• 3311

A.

2926  182 Views

8.

n is a whole number which when divided by 4 gives the remainder 3. The remainder when 2n is divided by 4 is

• 1

• 2

• 3

• 0

B.

2

Shortcut Method:
Twice the remainder and then divided by 4
i.e. (2 x 3) = 6/4 = 2
Hence, 2 is the required remainder.
169 Views

6.

H.C.F. of is

• • • • B. H.C.F. of  216 Views