Question

The number of boys and girls in a school are 260 and 390 respectively. Find
the ratio of girls to the total number of students.
Iwo numbers are in the ratio 2: 7. If sum of the numbers is 99, find them.​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

3:5,

22 and 77

Step-by-step explanation:

Total no.of boys =260

Total no. of girls =390

So,total no. of students = 260+390=650

Ratio of girls to total students = (no. of girls) /total no. of students = 390/650

=

Ratio of two no. is given as 2:7

Let the numerator be 2x and denominator be 7x

Then given that sum of two no. is 99

Therefore, 2x + 7x = 99

9x = 99

x= 11

So the two no. are 2*11=22 and 7*11 = 77.