Exams


Q:

6 men can complete a piece of work in 12 days. 8 women can complete the same piece of work in 18 days whereas 18 children can complete the piece of work in 10 days. 4 men, 12 women and 20 children work together for 2 days. If only men were to complete the remaining work in 1 day how many men would be required totally?

A) 38 B) 72
C) 36 D) 76
 
Answer & Explanation Answer: C) 36

Explanation:

Given 4men, 12 women and 20 children work for  2 days.

Workdone for 2 days by 4men, 12 women and 20 children = 4 x 26 x 12 + 12 x 28 x 18 + 20 x 218 x 10 = 12

Therefore, remaining work = 1 - 12 = 12

To complete the same work by only men in 1 day,

We know that M1 x D1 = M2 x D2

Here M1 = 6 , D1 = 12 and M2 = M , D2 = 1

12 x 6 = M x 1

=> M = 12 x 6 = 72

=> But the remaining work = 1/2

Men required => 1/2 x 72 = 36

Only men required to Complete the remaining work in 1 day = 36.

 

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Filed Under: Time and Work
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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20 16088
Q:

What will be the cost of building a fence around a square plot with area equal to 289 sq ft, if the price per foot of building the fence is Rs. 58 ?

A) Rs. 3748 B) Rs. 3847
C) Rs. 3944 D) Rs. 3154
 
Answer & Explanation Answer: C) Rs. 3944

Explanation:

Let the side of the square plot be 'a' ft.
Given area of the plot (a x a) = 289 => a = 17
Length of the fence = Perimeter of the plot = 4a = 68 ft.
Cost of building the fence = 68 x 58 = Rs. 3944.

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Filed Under: Average
Exam Prep: AIEEE , Bank Exams , CAT
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16 16085
Q:

Refer the below data table and answer the following question.

What was the increase in the height of the child from 6th Birthday to 15th birthday?

 

A) 70 cms B) 65 cms
C) 60 cms D) 75 cms
 
Answer & Explanation Answer: B) 65 cms

Explanation:
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Filed Under: Table Charts
Exam Prep: Bank Exams

0 16082
Q:

Refer the below data table and answer the following question.

How many cars were manufactured in the month of April and May?

 

A) 1070 B) 1120
C) 1220 D) 4130
 
Answer & Explanation Answer: B) 1120

Explanation:
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Filed Under: Table Charts
Exam Prep: Bank Exams

0 16080
Q:

64 boys and 40 girls form a group for social work. During their membership drive, the same number of boys and girls joined the group. How many members does the group have now, if the ratio of boys to girls is 4:3 ?

A) 168 B) 201
C) 147 D) 154
 
Answer & Explanation Answer: A) 168

Explanation:

Let us say x boys and x girls joined the group.

(64 + x)/(40 + x) = 4/3

192 + 3x = 160 + 4x => x = 32

Number of members in the group = 64 + x + 40 + x

= 104 + 2x = 168.

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Filed Under: Ratios and Proportions
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16 16078
Q:

Identify the diagram that best represents the relationship among classes given below:

Stationery items, Pencils, Potatoes

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: D) 4

Explanation:
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Filed Under: Logical Venn Diagram
Exam Prep: Bank Exams

3 16058
Q:

Refer the below data table and answer the following question.

For which of the following pairs of years the total exports from the three companies together are equal? (in lakhs)

A) 2011 & 2013 B) 2011 & 2015
C) 2011 & 2012 D) 2014 & 2015
 
Answer & Explanation Answer: B) 2011 & 2015

Explanation:
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Filed Under: Table Charts
Exam Prep: Bank Exams

0 16056
Q:

A rectangular paper when folded into two congruent parts had a perimeter of 34cm foer each part folded along one set of sides and the same is 38cm. When folded along the other set of sides. What is the area of the paper?

A) 140 B) 150
C) 160 D) 170
 
Answer & Explanation Answer: A) 140

Explanation:

when folded along the breadth
we have 2(l/2 +b) = 34 or l+2b = 34...........(1)
when folded along the length, we have 2(l+b/2)=38 or 2l+b =38.....(2)
from 1 &2 we get l=14 and b=10
Area of the paper = 14*10 = 140 sq cm

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Filed Under: Area
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7 16055