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# MindTree Aptitude Questions and Answers for Freshers

17.4K

## Total Qs: 60+

NA
SHSTTON
128
Solv. Corr.
242
Solv. In. Corr.
370
Attempted
2 M:8 S
Avg. Time

1 / 60

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A can do a piece of work in 14 days which B can do in 21 days. They begin together but 3 days before the completion of the work, A leaves off. The total number of days to complete the work is:

A6 3/5

B8 1/2

C10 1/5

D13 1/2

| | Important Formulas | Topic: | Asked In 1 |

Explanation:

A's 1 day work = $$\frac{1}{14}$$
B' 1 day work = $$\frac{1}{21}$$

A left 3 day before the completion of work.
B's 3 days' work = $$\frac{1}{21} \times 3 = \frac{1}{7}$$
Remaining work = $$1 \times \frac{1}{7} = \frac{6}{7}$$

(A + B)'s 1 day's work = $$\left(\frac{1}{14} + \frac{1}{21}\right) = \frac{5}{42}$$

Now, $$\frac{5}{42}$$ work is done by A and B = 1 day.
or
whole work done by A&B = $$\frac{42}{5}$$
$$\frac{6}{7}$$ part of work done by A and B = $$\frac{42}{5} \times \frac{6}{7} = \frac{36}{5}$$ days.

Hence, total time taken = (3+36/5)days = $$10\frac{1}{5}$$ days.

NA
SHSTTON
115
Solv. Corr.
113
Solv. In. Corr.
228
Attempted
1 M:18 S
Avg. Time

2 / 60

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A vendor bought toffees at 6 for a rupee. How many for a rupee must he sell to gain 20%?

A3

B4

C5

D6

| | Important Formulas | Topic: | Asked In MindTree |

Explanation:

C.P. of 6 toffees = Re. 1

S.P. of 6 toffees = 120% of Re. 1 = Rs. (120/100 ) = Rs. 6/5
so toffees in Re 1 = 6 * 5/6 = 5

Tags: MindTree

NA
SHSTTON
138
Solv. Corr.
219
Solv. In. Corr.
357
Attempted
1 M:32 S
Avg. Time

3 / 60

Choose the correct option.

In a certain company, 20% of the men and 40% of the women attended the annual company picnic. If 35% of all the employees are man, what percent of all the employees went to the picnic?

A33.33%

B34%

C30%

D33%

| | Important Formulas | Topic: | Asked In |

Explanation:

Lets assume that total 100 employees are in company.
out of that 35 are man and remaining 65 are women.
20% of man 35 = 20*35/100
40% of women = 40*65/100
total employees = 7+26 = 33 out of 100
=> 33 %

NA
SHSTTON
13
Solv. Corr.
22
Solv. In. Corr.
35
Attempted
0 M:0 S
Avg. Time

4 / 60

Choose the correct option.

In seven given numbers,the average of first four numbers is 4 and that of last four numbers is also 4. If the average of these seven numbers is 3, the fourth number is?

A3

B4

C7

D11

| | Important Formulas | Topic: | Asked In |

Explanation:

let 7 numbers are a,b,c,d,e,f,g.
given avg of first 4 nums are 4...i.e (a+b+c+d)/4=4
a+b+c+d=16
given avg of last 4 nums are also 4..i.e.(d+e+f+g)/4=4
d+e+f+g=16
e+f+g=16-d
given avg of 7 nums are 3....i.e (a+b+c+d+e+f+g)/7=3
a+b+c+d+e+f+g=21
16+16-d=21
d=32-21
d=11

NA
SHSTTON
21
Solv. Corr.
12
Solv. In. Corr.
33
Attempted
0 M:0 S
Avg. Time

5 / 60

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The boys and girls in a college are in the ratio 3 : 2. If 20% of the boys and 25% of the girls are adults, the percentage of students who are not adults is :

A58%

B67.50%

C78%

D82.50%

| | Important Formulas | Topic: | Asked In |

Explanation:

let total students will be 100 divide it in 3:2 =60/40
20 % 60=12 boys adult
25 % 40= 10girls adults
total adults = 22
no of students =100
100-22=78
78% are non adult

NA
SHSTTON
9
Solv. Corr.
17
Solv. In. Corr.
26
Attempted
0 M:0 S
Avg. Time

6 / 60

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In June a baseball team played 60 games and won 30% of them. After a phenomenal winning streak this team raised its average to 50%. How many games must the team have won in a row to attain this average?

A30

B24

C12

D20

| | Important Formulas | Topic: | Asked In |

Explanation:

explanation: 60----18 wins (18/60)*100=30%.
for 50% they are winning games in row= ((18+x)/(60+x))*100=50%
by solving this we will get x= 24 games.
here x= no of winning games in a row

NA
SHSTTON
8
Solv. Corr.
19
Solv. In. Corr.
27
Attempted
0 M:0 S
Avg. Time

7 / 60

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There are 3 boys and 4 girls. How many ways they are arranged such that boys should be always together ?

A5 ways

B6 ways

C120 ways

D720 ways

| | Important Formulas | Topic: | Asked In |

Explanation:

By keeping 3 boys together (1) and arranging 4 girls with them
5! = 5*4*3*2*1 = 120ways. (i.e., 4+1 =5)
Possible arrangements of 3 boys in following ways
3! = 3*2*1 = 6ways
Now, arrange all with the boys together
120*6 = 720ways

NA
SHSTTON
19
Solv. Corr.
10
Solv. In. Corr.
29
Attempted
0 M:0 S
Avg. Time

8 / 60

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3 balls inside a bag having numbers on it written 1, 2, 3 on it. A ball is taken and then put inside it. Find probability that all 3 nos. are the same when it is taken 3 times?

A1/26

B1/27

C1/6

D1/12

| | Important Formulas | Topic: | Asked In |

Explanation:

By law of probability = 1/3 * 1/3 * 1/3 = 1/27

NA
SHSTTON
17
Solv. Corr.
10
Solv. In. Corr.
27
Attempted
0 M:0 S
Avg. Time

9 / 60

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Find the coordinates of the midpoint of the line segment joining the points A(-3,2) and B(7,8)

A2,4

B3,3

C2,5

D4,3

ENone of above

| | Important Formulas | Topic: | Asked In |

Explanation:

mid point of two point
take two point a(x1,y1) and b(x2,y2)
so mid point is (x1+x2)/2 and (y1+y2)/2
so (-3+7)/2=4/2=2
and (2+8)/2=10/2=5
so mid point is (2,5)

NA
SHSTTON
10
Solv. Corr.
12
Solv. In. Corr.
22
Attempted
0 M:0 S
Avg. Time

10 / 60

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An article costing rs.160 is sold at 15% discount on a mark-up price. What is the selling price after discount?

A124

B126

C136

D140

| | Important Formulas | Topic: | Asked In |