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Directions For Questions
Read the Bar chart given below carefully and answer the following questions.
The percentage of boy and girl babies out of total babies born in the corresponding year.
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What is total number of girl babies born in the year of 1994, 1995 and 1996?
1994 = 400 * (60/100) = 240
1995 = 600* (65/100) = 390
1996 = 900 * (45/100) = 405
Total girl babies = 240+390+405 = 1035.
Total number of boy babies in the year of 1996, 1997, 1998 is what approximately percentage of total number of girl babies in the year of 1995, 1996, 1997?
Total number of boy babies
In the year of 1996, 1997, 1998 = 495+350+520 = 1365
Total number of girl babies
In the year of 1995, 1996, 1997 = 390+405+350 = 1145
Percentage = (1365 /1145) *100 = 119.2 = 120%
What is the ratio of number of girl babies in all the years and total number of babies in the year of 1996, 1997 and 1998?
Total number of girl babies in all the years = 1665
Total number of babies in the
Year of 1996, 1997 and 1998 = 2400
Ratio = 1665: 2400 = 111: 160
Which of the following year the difference between no. of boy babies and no. of girl babies is maximum?
Difference:
1994 = 80; 1995 = 180; 1996 = 90; 1998= 240.
So, 1998 is maximum.
What is the Approximate percentage of increase / decrease in the Avg. No. of boy babies in all the year to the Avg. no. of number of girl babies in all the years expect 1996?
Avg. no. of boy babies = 347
Avg. no .of girl babies (except 1996) = 315
Approximate Percentage = ((347 -315)/ 315) *100
= 10.15 = 10% increase.
In each of the following questions two equations are given. You have to solve the equations and give answer.
3x2 – 20x + 12 = 0
4y2 -16y +7 = 0
3x2 – 20x+12 = 0
X= 18/3, 2/3 = 6, 0.67
Y = 14/4, 2/4 = 7, 0.5
So, relationship cannot be established for this equation
2X2 = 289
3Y = √289
X = 17/1.414, -17 /1.414 ( = 1.414)
= 12.02, -12.02
Y = 17/3 = 5.66
Can’t be determined.
x2 -7x +12 =0
3Y2 – 16y +16 =0
X= 3, 4
Y = 12/3, 4/3 = 4, 1.33
5x2+6x-8 =0
4y2 +2y-6 =0
X= -10/5, +4/5 = -2, 0.8
Y = - 6/4, 4/4 = -1.5, 1
10x2 –x-3=0
2y2-13y +18=0
10x2 –x-3 =0
X= 6/10,-5/10 = 0.6,-0.5
Y= 9/2, 4/2 = 4.5, 2
x< y
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