Question

There were 1400 students studying in a commerce college . Among them ,855were boys and of them ,225 boys were in the second year .In the second year, the number of boys and the number of girls are equal . Among the 550 students of the first year , the propotion of number of boys and girls is 3:2. In the third year, number of boys is three times the number of girls. Represent the above information in a table

Answer 1

Answer: Table Work

Explanation:

Explanation:

Total Students: 1400

Boys: 855

Second Year: 225

First Year: 550 X 3/5 = 330

Third year: 300

Girls: 1400 – 855 = 545

Second Year: 225

First Year: 550 X 2/5 = 220

Third year: 100

Answer 2

Given: The total number of students= 1400, the total number of boys= 855, 255 boys and females are in the 2nd year, In the 3rd year, Number of students in the 1st year= 550, The number of boys is three times the number of females.

To Find: Number of boys and females in the 1st and the 3rd years.

Solution:

Total number of students in 1st year= 550

The ratio of boys to females (in the 1st year)= 3:2

Number of boys(in the 1st year)= $\frac{3}{5}$ ×  550

Number of boys(in the 1st year)= 330

Number of females(in the 1st year)= $\frac{2}{5}$ × 550

Number of females(in the 1st year)= 220

Total Number of females in the college= 1400-855 = 545

Now to calculate the number of females in the third year = (Total number of girls- Total number of females in 1st and 2nd years)

Number of females in the third year = 545- 255+220 = 70

Number of boys(in the third year)= 3(Number of females in the third year)

Number of boys in the third year= 3 × 70 = 210

hence:-

Number of females(in the 1st year)= 220

Number of boys(in the 1st year)= 330

Number of females in the 3rd year = 70

Number of boys in the 3rd year= 210