Advertisements
Advertisements
प्रश्न
Find the third proportional to 36, 18
Advertisements
उत्तर
Let the required third proportional be x
∴ 36, 18, x are in continued proportion
⇒ 36 : 18 = 18 : x
⇒ 36x = 18 × 18
⇒ x = `(18xx18)/36`
⇒ x = 9
∴ Required proportional = 9
APPEARS IN
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.
If 2a = 3b and 4b = 5c, find: a : c.
Convert the following percentage to fractions and ratio:
2.5%
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 reciprocal ratio of 4 : 7
If a bus covers 195 km in 3 hours and a train covers 300 km in 4 hours, then the ratio of their speeds is
Two numbers are in the ratio 3 : 5 and their sum is 96. The larger number is
25 kg : 20 g = 50 kg : 40 g
A tea merchant blends two varieties of tea costing her Rs. 234 and Rs. 130 per kg in the ratio of their costs. If the weight of the mixture is 84 kg, then find the weight of each variety of tea.
A car can travel 240 km in 15 litres of petrol. How much distance will it travel in 25 litres of petrol?
