What is the total number of girls enrolled in Painting from all the Institutes together?

Total number of girls enrolled in Painting = 250 + 225 + 150 + 175 + 300 = 1100
Total number of girls enrolled in Stitching = 325 + 250 + 50 + 250+ 325 = 1200
Total number of girls enrolled in Dancing = 150 + 200 + 75 + 400 + 350 = 1175
Hence, required ratio = 1100 : 1200 : 1175 = 44 : 48 : 47

Total number of girls enrolled in painting in the Institutes A and C = 250 + 150 = 400
Total number of girls enrolled in painting in the Institutes D and E = 250 + 325 = 575
Required ratio = 400 : 575 = 16 : 23

As per given graph, we can calculate
Number of Matriculate job-seekers :
In 2003 ? 1400 - 650 = 750
In 2004 ? 1625 - 1000 = 625
In 2006 ? 2300 - 1250 = 1050
In 2008 ? 1400 - 2200 = 1800
Hence, in 2008, number of Matriculate job-seekers was maximum.

In 2004. total number of job seekers = 1625
In 2008. total number of job seekers = 4000
Required difference = 4000 - 1625 = 2375

In the year 2005, the number of job- seekers having their qualifications as Matriculation = 1850 - 1050 = 800

Number of girls enrolled in Stitching in Institute B = 250
Total number of girls enrolled in Stitching in all the Institutions
= 325 + 250 + 50 + 250 + 325 = 1200
Hence, required percentage = 250/1200 x 100 = 20.83 ? 21%

Number o girls enrolled in Dancing in Institute A = 150
Total number of girls enrolled in all the Hobby classes in Institute A = 250 + 325 + 150 = 725 Hence, required percentage = 150/725 x 100 = 20.69

Increase in the price of crude oil in the given month with respect to the corresponding previous months:
In March ? (3980 - 3210) x 100 /3210 ? 24% > 10%
In April ? (4800 - 3980) x 100/3980 = 20.6% > 10%
In May ? (4940 - 4800)/4800 x 100 ? 3% < 10%
In June ? (4970 - 4940)/4970 x 100 = 0.6% < 10%
In July ? (5730 - 4970 )x100 /4970 = 15.3% > 10%
In August ? (6250 - 5730)x 100/5730 = 9.07% < 10%
In September ? (7020 - 6250)x 100/6250 = 12.32 > 10%
Hence, in March, April, July and September i.e.. 4 months the increase in the price of crude oil was more than 10% with respect to the corresponding precious months.

Increase in the price of crude oil in the given month with respect to the corresponding previous months:
In March ? (3980 - 3210) x 100 /3210 ? 24%
In April ? (4800 - 3980) x 100/3980 = 20.6%
In May ? (4940 - 4800)/4800 x 100 ? 3%
In June ? (4970 - 4940)/4970 x 100 = 0.6%
In July ? (5730 - 4970 )x100 /4970 = 15.3%
In August ? (6250 - 5730)x 100/5730 = 9.07%
In September ? (7020 - 6250)x 100/6250 = 12.32%
It is shown that in the months of July and September, increase in the crude oil price was more than 10% but less than 20% over the earlier month.

Increase in the price of crude oil in the given month with respect to the corresponding previous months:
In April ? (4800 - 3980) x 100/3980 = 20.6%
In May ? (4940 - 4800)/4800 x 100 ? 3%
In June ? (4970 - 4940)/4970 x 100 = 0.6%
In August ? (6250 - 5730)x 100/5730 = 9.07%
it is clear that in the month of May only increase in crude oil price has less than 1% i.e., 0.6 % over the earlier month.