Bar Charts - Solved Examples
Directions(Q 1 to Q 5): Answer the questions given below using the graph below:
Answer - B
Explanation
Total number of girls = (25+30+20+30+32.5) thousand = 137.5*1000 = 137500.
∴ Average number of girls = 137500/5 = 27500
Q 2 - The total number of girls from the collage D and E together is how much percent of the total number of girls from the collage A,B and C together?
A -83.3%
B - 75%
C - 70%
D - 88%
Answer - A
Explanation
Total number of girls in collages D and E =(30+32.5) thousand = (62.5*1000) = 62500.
Total number of girls in collages A,B and C= (25+30+20) thousands = (75*1000)= 75000
∴ Required % = (62500/75000*100)= 83.3%
Answer - C
Explanation
Total number of boys = (22.5+25+30+22.5+22.5) thousands =(122.5*1000) = 122500
Total number of girls = (25+30+20+30+32.5) thousand = 137.5*1000 = 137500.
∴ Required difference = (137500-122500)= 15000
Q 4 - Which of the following is the ratio of the number of the boys from collage D to the number of boys from collage B?
A - 10:9
B - 8:9
C - 9:10
D - 9:8
Answer - C
Explanation
Required ratio = (22.5*1000): (25*1000)= 225 : 250 = 9: 10
Q 5 - The number of boys from collage C is how much percent of the total number of boys from all the collages?
A - 43%
B - 35%
C - 36%
D - 25%
Answer - D
Explanation
Required % = {(30000/122.5*1000)*100}% = (300/1225*100)% = 1200/49% = 25%
Directions(Q 6 to Q 10): Answer the questions given below using the graph below:
Answer - B
Explanation
(2005, 2006):
X : (175+125)= 300
Y : (200+175)= 375
(2000, 2001)
X : (175+200)= 375
Y : (225+150)= 375
Thus total production of x = total production of Y in 2000 and 2001.
Answer - C
Explanation
For commodity x, we have:
In 2001, increase% = (25/175*100)% = 14.3%
In 2002 , increase% = (75/200*100)% = 37.5%
In 2003, increase% = (125/275*100)% = 45.45%
In 2004 , increase% = (50/150*100)% = 33.5%
In 2005, increase% = (25/200*100)% = 12.5%
In 2006 , increase% = (50/175*100)% = 28.5%
So, it was the maximum decrement in 2003.
Answer - D
Explanation
Average production = 1400/7 lakh tons = 200 lakh tons.
Q 9 - Which of the following is respective ratio between total production of the two commodities together for the years 2000, 2001 and 2002 and the total production of the two commodities together for the years 2004, 2005 and 2006?
A - 17:15
B - 7:6
C - 15:17
D - 6:7
Answer - A
Explanation
X + Y in 2000, 2001 and 2002 = (400+350+525)lakh tons = 1275 lakh tons.
X + Y in 2004, 2005 and 2006 = (450+375+300)= 1125 lakh tons
∴ Required ratio = 1275: 1125 = 17:15
Q 10 - Which of the following is the respective ratio of total production of commodity x to the total production of commodity Y for all the years together?
A - 23:18
B - 13:14
C - 14:13
D - 18:23
Answer - D
Explanation
Required ratio = 1300:1400 = 13:14
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