Advertisements
Advertisements
Question
If p : q = 2 : 5 , q : r = 4 : 3, then find p : r
Advertisements
Solution
p : q = 2 : 5 `=> "p"/"q" = 2/5`
q : r = 4 : 3 `=> "q"/"r" = 4/3`
`=> "p"/"q" xx "q"/"r" = 2/5 xx 4/3`
`=> "p"/"q" = 8/15`
p : r = 8 : 15
APPEARS IN
RELATED QUESTIONS
If the ratio between 8 and 11 is the same as the ratio of 2x – y to x + 2y, find the value of `(7x)/(9y)`.
Find sub-triplicate ratio of x3 : 125y3
If a : b = 3 : 5, find: (10a + 3b) : (5a + 2b)
Find the reciprocal ratio of 5 : 8
Find the sub-triplicate ratio of the following :
512: 216
A school has 630 students. The ratio of the number of boys to the number of girls is 3 : 2. This ratio changes to 7 : 5 after the admission of 90 new students. Find the number of newly admitted boys.
If x2, 4 and 9 are in continued proportion, find x.
Express the following ratios in its simplest form :
2 years: 9 months
In an examination, the number of those who passed and the number of those who failed were in the ratio of 3 : 1. Had 8 more appeared, and 6 less passed, the ratio of passed to failures would have been 2 : 1. Find the number of candidates who appeared.
At the parking stand of Ramleela ground, Kartik counted that there are 115 cycles, 75 scooters and 45 bikes. Find the ratio of the number of cycles to the total number of vehicles.
