The table below embodies data on the sales
revenue (in lakh) generated by a publishing house during the years 2012-15
while selling books, magazines and journals as three categories of items.
Answer questions 1-3 based on the data contained in the table.
1.
If the year 2016 were to show the same growth
in terms of total sales revenue as the year 2015 over the year 2014, then the
revenue in the year 2016 must be approximately:
(1) Rs.194
lakh
(2) Rs.187
lakh
(3) Rs.172
lakh
(4) Rs.177
lakh
Answer: 4
2. In
2015, approximately what percent of total revenue came from books?
(1) 45%
(2) 55%
(3) 35%
(4) 25%
Answer: 1
3. The
number of years in which there was an increase in revenue from at least two
categories of items, is
(1) 0
(2) 1
(3) 2
(4) 3
Answer: 3
A University professor maintains data on MCA
students tabulated by performance and gender of the students. The data is kept
on a computer hard disk, but accidently some of it is lost because of a
computer virus. Only the following could be recovered:
Panic
buttons were pressed but to no avail. An expert committee was formed, which
decided that the following facts were self evident:
(a) Half the
students were either excellent or good.
(b) 40% of
the students were females.
(c)
One-third of the male students were average.
Answer
questions 4-6 based on the data given above:
4. Approximately,
what proportion of good students are male?
(1) 0
(2) 0.73
(3) 0.43
(4) 0.27
Answer: 2
Explanation:
(b) 40% of
the students were females = 32
Therefore
total no. of students = (100/40) x 32 = 80
So, no. of
male students = 80-32 = 48
(c)
One-third of the male students were average = 1/3 x 48 = 16
(a) Half the
students were either excellent or good.
So, Total
Good + Total Excellent = 40
=> Total Good = 40-10-30
So, Total
Average = 40
Proportion
of good students who are male = 22/30 = 0.73
5. How
many female students are excellent?
(1) 0
(2) 8
(3) 16
(4) 32
Answer: 1
6. What
proportion of female students are good?
(1) 0
(2) 0.25
(3) 0.50
(4) 0.75
Answer: 2
Explanation:
Proportion
of female students who are good = 8/32 = 0.25
7. Which
of the following correctly lists computer memory types from highest to lowest
speed?
(1) Secondary
Storage; Main Memory; Cache Memory; CPU Registers
(2) CPU Registers;
Cache Memory; Secondary Storage; Main Memory
(3) CPU Registers;
Cache Memory; Main Memory; Secondary Storage
(4) Cache Memory;
CPU Registers; Main Memory; Secondary Storage
Answer: 3
8. Which
of the following statement(s) is/are TRUE?
S1: The
decimal number 11 is larger than the hexadecimal number 11.
S2: In the
binary number 1110.101, the fractional part has the decimal value as 0.625.
(1) S1 only
(2) S2 only
(3) Both S1
and S2
(4) Neither
S1 nor S2
Answer: 2
Explanation:
To convert
Hexadecimal number to Decimal number, multiply every digit with 16 power of
digit location. Then, sum all the multipliers.
Decimal
representation of hexadecimal number 11 = 1x161+1x160
= 16+1 = 17
To convert decimal
fraction to binary, begin with the decimal fraction and multiply by 2
Because .625
x 2 = 1.25, the first binary digit to the right
of the point is a 1.
Because .25
x 2 = 0.50, the second binary digit to the right
of the point is a 0.
Because .50
x 2 = 1.00, the third binary digit to the right
of the point is a 1.
In fact, we
do not need to multiply the fraction again, because we had 0 as the fractional
part of our result there.
Hence the
representation of .625 = .101 (base 2).
9. Read
the following two statements:
I: Information and Communication Technology (ICT)
is considered a subset of Information Technology (IT).
II: The ‘right
to use’ a piece of software is termed as copyright.
Which of the
above statement(s) is/are CORRECT?
(1) Both I
and II
(2) Neither
I nor II
(3) II only
(4) I only
Answer: 2
Explanation:
Information
technology (IT) is the application of computers to store, study, retrieve,
transmit, and manipulate data,[1] or information, often in the context of a
business or other enterprise.[2] IT is considered a subset of information and
communications technology (ICT).
Copyright is
a legal right created by the law of a country that grants the author of an original
work exclusive right for its use and distribution. This means whatever content
the author created cannot be used or published by anyone else without the
consent of the author.
10. DVD
technology uses an optical media to store the digital data. DVD is an acronym for
(1) Digital
Vector Disc
(2) Digital
Volume Disc
(3) Digital
Versatile Disc
(4) Digital
Visualization Disc
Answer: 3
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