Advertisements
Advertisements
प्रश्न
The strength of a class is 65, including 30 girls. Find the ratio of the number of:
(i) girls to boys
(ii) boys to the whole class
(iii) the whole class to girls
Advertisements
उत्तर
Total strength of class (including boys and girls) = 65
Number of girls = 30
Number of boys = (65 – 30) = 35
(i) Ratio between girls and boys
`=30:35=30/35=6/7=6:7`
(ii) Ratio between boys and whole class
`35:65=35/65=7/13=7:13`
(iii) Ratio between whole class and girls
`65:30=65/30=13/6=13:6`
APPEARS IN
संबंधित प्रश्न
Find the compound ratio of 2a : 3b, mn : x2 and x : n
A woman reduces her weight in the ratio 7 : 5. What does her weight become if originally it was 84 kg?
Using properties of proportion solve for x, given
`(sqrt(5x)+sqrt(2x -6))/(sqrt(5x)- sqrt(2x -6)) = 4`
If b is the mean proportion between a and c, show that:
`("a"^4 + "a"^2"b"^2 + "b"^4)/("b"^4 + "b"^2"c"^2 +"c"^4) = "a"^2/"c"^2`
The weekly expenses of a boy have increased from ₹ 1,500 to ₹ 2,250. Find the ratio of:
(i) increase in expenses to original expenses.
(ii) original expenses to increased expenses.
(iii) increased expenses to increase in expenses.
Mr. Gupta divides Rs 81000 among his three children Ashok, Mohit, and Geeta in such a way that Ashok gets four times what Mohit gets and Mohit gets 2.5 times what Geeta gets. Find the share of each of them.
Find the following ratio in the simplest form:
24 to 56
The ratio of the number of male and female workers in a textile mill is 5 : 3. If there are 115 male workers, what is the number of female workers in the mill?
Two numbers are in the ratio 11 : 12 and their sum is 460. Find the numbers.
Find the ratio of:
35 minutes to an hour
