Electrical Engineering
GATE EE topic:quantitative-aptitude PYQs
Build your understanding with focused practice from past exam papers.
Questions 31–40 of 50. Imported answers require independent review unless marked reviewed.
Question 4
Open questionGAMCQ1 markNeeds review
It takes two hours for a person X to mow the lawn. Y can mow the same lawn in four hours. How long (in minutes) will it take X and Y, if they work together to mow the lawn?
Your answerChoose one option.
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Open questionGAMCQ2 marksNeeds review
How many integers are there between 100 and 1000 all of whose digits are even?
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Open questionGAMCQ2 marksNeeds review
The ratio of the number of boys and girls who participated in an examination is 4:3. The total percentage of candidates who passed the examination is 80 and the percentage of girls who passed is 90. The percentage of boys who passed is ______.
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Open questionGAMCQ2 marksNeeds review
Given two sets
and
, we construct a set
of all possible fractions where the numerators belong to set
and the denominators belong to set
. The product of elements having minimum and maximum values in the set
is ____.Your answerChoose one option.
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Open questionGAMCQ1 markNeeds review
The three roots of the equation
are
. What are the three values of
for which
?Your answerChoose one option.
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Open questionGAMCQ1 markNeeds review
For what values of
given below is
an integer?Your answerChoose one option.
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Open questionGAMCQ1 markNeeds review
Functions
and
are defined as follows:
and
, where
represents the absolute value of
.
What would be the value of
?Your answerChoose one option.
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Open questionGAMCQ2 marksNeeds review
An e-mail password must contain three characters. The password has to contain one numeral from 0 to 9, one upper case and one lower case character from the English alphabet. How many distinct passwords are possible?
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Open questionGAMCQ2 marksNeeds review
A class of twelve children has two more boys than girls. A group of three children are randomly picked from this class to accompany the teacher on a field trip. What is the probability that the group accompanying the teacher contains more girls than boys?
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 9
Open questionGAMCQ2 marksNeeds review
A designer uses marbles of four different colours for his designs. The cost of each marble is the same, irrespective of the colour. The table below shows the percentage of marbles of each colour used in the current design. The cost of each marble increased by 25%. Therefore, the designer decided to reduce equal numbers of marbles of each colour to keep the total cost unchanged. What is the percentage of blue marbles in the new design?
Blue | Black | Red | Yellow |
|---|---|---|---|
40% | 25% | 20% | 15% |
Your answerChoose one option.
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