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Cisco Placement Questions & Answers :: Cisco

55.72K

Total Qs: 119+

NA
SHSTTON
29
Solv. Corr.
38
Solv. In. Corr.
67
Attempted
0 M:0 S
Avg. Time

111 / 119

Choose the correct option.

105 shake hands were exchanged in a meeting, each person shakes hands with every other person only once.How many people were present in the meeting?

A14

B8

C56

D15

Explanation:

Let n be the number of persons in the party. Number of hands shake = 105; Total number of hands shake is given by nC2.

Now, according to the question,

nC2 = 105;
=> n!/[2!*(n-2)!] = 105;
=> n*(n-1)/2 = 105;
=> n2-n = 210;
=> n2-n-210 = 0;
=> n = 15, -14 (Negative Value);

So, n = 15 i.e. number of persons in the party = 15.

Tags: Cisco

NA
SHSTTON
21
Solv. Corr.
27
Solv. In. Corr.
48
Attempted
0 M:0 S
Avg. Time

112 / 119

Choose the correct option.

A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 3 days. How long B alone would take to do the whole work?

A23 days

B37 days

C40 days

D$$37 \frac{1}{2}$$ days

Explanation:

Work done by A in 20 days = 80/100 = 8/10 = 4/5

Work done by A in 1 day = (4/5) / 20 = 4/100 = 1/25 --- (1)

Work done by A and B in 3 days = 20/100 = 1/5 (Because remaining 20% is done in 3 days by A and B)

Work done by A and B in 1 day = 1/15 ---(2)

Work done by B in 1 day = 1/15 – 1/25 = 2/75

=> B can complete the work in 75/2 days = 37 (1/2) days

Tags: Cisco

NA
SHSTTON
28
Solv. Corr.
27
Solv. In. Corr.
55
Attempted
0 M:0 S
Avg. Time

113 / 119

Choose the correct option.

The captain of a cricket team of 11 members is 26 years old and the wicket keeper is 3 years older. If the ages of these two are excluded, the average age of the remaining players is one year less than the average age of the whole team. What is the average age of the team?

A23 years

B24 years

C25 years

DNone of these

Explanation:

Let the average age of the whole team by x years.

11x - (26 + 29) = 9(x -1)

11x - 9x = 46

2x = 46

x = 23.

So, average age of the team is 23 years.

Tags: Cisco

NA
SHSTTON
30
Solv. Corr.
26
Solv. In. Corr.
56
Attempted
0 M:0 S
Avg. Time

114 / 119

Choose the correct option.

A password consists of two letters of the alphabet followed by three digits chosen from 0 to 9. Repeats are allowed. How many different possible passwords are there?

A492,804

B650,000

C676,000

D1,757,600

Explanation:

For the first Letter you have 26 possible letters
For the second letter you have 26 possible letters
For the first number you have 10 possible numbers

For the second number you have 10 possible numbers
For the third number you have 10 possible numbers
Times all of the possibilities together to get:

26*26*10*10*10 = 676000
Which means their are 676,000 possible passwords

Tags: Cisco

NA
SHSTTON
5
Solv. Corr.
47
Solv. In. Corr.
52
Attempted
0 M:0 S
Avg. Time

115 / 119

Choose the correct option.

What is the volume of hemisphere of radius 5 cm?

A250/3 pi

B500/3 pi

C50/3 pi

D350/3 pi

Explanation:

Here is no explanation for this answer

ShortCut By :: Vikash

Volume of a hemisphere= 2/3 *pi* r^3

2/3* pi* 5^3= 250 pi/3

Tags: Cisco

NA
SHSTTON
22
Solv. Corr.
31
Solv. In. Corr.
53
Attempted
0 M:0 S
Avg. Time

116 / 119

Choose the correct option.

Two trains with lengths x and y ,and speeds u and v. Approaching each other how much time it takes to takes for faster train to cross other train?

Given: u > v and x > y

A(x + y)/(u - v) sec.

B(x - y)/(u + v) sec.

C(x + y)/(u + v) sec.

DNone of these

Explanation:

Here is no explanation for this answer

Tags: Cisco

NA
SHSTTON
14
Solv. Corr.
23
Solv. In. Corr.
37
Attempted
0 M:0 S
Avg. Time

117 / 119

Choose the correct option.

If 9x-3y=12 and 3x-5y=7 then 6x-2y = ?

A5

B4

C2

D8

Explanation:

Here is no explanation for this answer

Tags: Cisco

NA
SHSTTON
137
Solv. Corr.
130
Solv. In. Corr.
267
Attempted
0 M:39 S
Avg. Time

118 / 119

Choose the correct option.

A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?

A120 metres

B180 metres

C324 metres

D150 metres

Explanation:

Length of the train = (Speed x Time) =50/3 x 9 m = 150 m.

NA
SHSTTON
83
Solv. Corr.
68
Solv. In. Corr.
151
Attempted
0 M:11 S
Avg. Time

119 / 119

What is the output of the following 'C' program?
#include<stdio.h>
void main()
{
int i=3;

switch(i)
{
default:printf("zero");
case 1: printf("one");
break;
case 2:printf("two");
break;
case 3: printf("three");
break;
}
}

Azero three

Bthree

Czero one

Dzero