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`
संबंधित प्रश्न
In a basket, the ratio between the number of oranges and the number of apples is 7 : 13. If 8 oranges and 11 apples are eaten, the ratio between the number of oranges and the number of apples becomes 1 : 2. Find the original number of oranges and the original number of apples in the basket.
Find sub-duplicate ratio of (x – y)4 : (x + y)6
Find the triplicate ratio of the following :
`root (3)("ab"^2) : root (3)("a"^2"b")`
Find the sub-duplicate ratio of the following :
`1/16 : 1/36`
In a club has 360 members, 40 play carrom, 96 play table tennis, 144 play badminton, and remaining members play volley-ball. If no member plays two or more games, find the ratio of members who play:
(i) carrom to the number of those who play badminton.
(ii) badminton to the number of those who play table-tennis.
(iii) table-tennis to the number of those who play volley-ball.
(iv) volleyball to the number of those who play other games.
Find the third proportional to 36, 18
Find the ratio of the first quantity to the second.
25 beads, 40 beads
A certain sum was divided among A, B and C in the ratio 7 : 5 : 4. If B got Rs 500 more than C, find the total sum divided.
Find the simplified form of the following ratio.
15 : 20
In a floral design made from tiles dimensions 40 cm by 60 cm (See figure), find the ratios of the perimeter of shaded portion to the perimeter of the whole design.
