Online Data Interpretation Test - Data Interpretation Test 3

Let the body weight be x kg.

Then, weight of skin protein in the body	= 16% of 1 of x kg 10
	= 16 x kg. 1000

Required percentage =		16x 1000	x 100		% = 1.6%.
		x

Quantity of water in the body of a person weighing 50 kg	= (70% of 50) kg
	= 35 kg.

Required ratio =	16% of 1   3	=	6	=	2	.
	16% of 1   6		3		1

Percentage of proteins and other dry elements in the body	= (16% + 14%)
	= 30%.
Central angle corresponding to proteins and other dry elements together
	= 30% of 360°
	= 108°.

Part of the body made of neither bones nor skin = 1 -		1	+	1		=	11	.
		6		10			15

As calculated above, the number of students studying in the school during 1999 = 3150.

Percentage increase in the strength of the school from 1997 to 1998

=		(3000 - 2950)	x 100		% = 1.69%     1.7%.
		2950

Required percentage =		3000	x 100		% = 93.75%
		3200

As calculated above, in the years 1996 and 2000 the strength of the school was same i.e., 3100.

As calculated above, the largest number of students (i.e., 550) joined the school in the year 2001.

Required difference

    = (No. of students scoring 30 and above marks in Chemistry)

       - (Number of students scoring 30 and above marks in aggregate)

    = 27 - 21

    = 6.

We have 60% of 50 =		60	x 50		= 30.
		100

Required number

      = No. of students scoring 30 and above marks in Physics

      = 32

Number of students getting at least 60% marks in Chemistry

    = Number of students getting 30 and above marks in Chemistry

    = 21.

Number of students getting at least 40% marks in aggregate

    = Number of students getting 20 and above marks in aggregate

    = 73.

Required percentage	= 21 x 100 % 73
	= 28.77%
	29%.

We have 40% of 50 =		40	x 50		= 20.
		100

Required number

      = Number of students scoring less than 20 marks in aggreagate

      = 100 - Number of students scoring 20 and above marks in aggregate

      = 100 - 73

      = 27.

Since 66 students get 20 and above marks in Chemistry and out of these 21 students get 30 and above marks, therefore to select top 35 students in Chemistry, the qualifying marks should lie in the range 20-30.

Required percentage =		(45 - 60)		% = -25%.
		60

There is a decline of 25% in production from 1997 to 1998.

Average production (in 10000 tonnes) of 1996 and 1997	40 + 60	= 50.
	2

We shall find the average production (in 10000 tonnes) for each of the given alternative pairs:

2000 and 2001 =	50 + 75	= 62.5.
	2

1999 and 2000 =	65 + 50	= 57.5.
	2

1998 and 2000 =	45 + 50	= 47.5.
	2

1995 and 1999 =	25 + 65	= 45.
	2

1995 and 2001 =	25 + 75	= 50.
	2

The average production of 1996 and 1997 is equal to the average production of 1995 and 2001.

Required percentage =		(80 - 25)	x 100		% = 220%.
		25

The percentage increase in production compared to previous year for different years are:

In 1996 =		(40 - 25)	x 100		% = 60%.
		25

In 1997 =		(60 - 40)	x 100		% = 50%.
		40

In 1998 there is a decrease in production.

In 1999 =		(65 - 45)	x 100		% = 44.44%.
		45

In 2000 there is a decrease in production.

In 2001 =		(75 - 50)	x 100		% = 50%.
		50

In 2002 =		(80 - 75)	x 100		% = 6.67%.
		75

Clearlyl, there is maximum percentage increase in production in 1996.

Average production (in 10000 tonnes) over the given years

=	1	(25 + 40 + 60 + 45 + 65 + 50 + 75 + 80) = 55.
	8

The productions during the years 1997, 1999, 2001 and 2002 are more than the average production.