Advertisements
Advertisements
Question
Find the compound ratio of the following:
If A : B = 4 : 5, B : C = 6 : 7 and C : D = 14 : 15. Find A : D.
Advertisements
Solution
Given A : B = 4 : 5, B : C = 6 : 7 and C : D = 14 : 15
or
`"A"/"B" = (4)/(5), "B"/"C" = (6)/(7), "C"/"D" = (14)/(15)`
Multiply all `"A"/"B" xx "B"/"C" xx "C"/"D" = (4)/(5) xx (6)/(7) xx (14)/(15)`
`"A"/"D" = (16)/(25)`
∴ A : D = 16 : 25.
RELATED QUESTIONS
If m : n = 3 : 8, find the value of (3m+2n) : (5m+n)
Find the duplicate ratio of the following :
`3 sqrt (2"a") : 2 sqrt (3"a")`
which of the following ratio is greater?
2 : 3 and 13 : 19
The sum of three numbers, whose ratios are `3 1/3 : 4 1/5 : 6 1/8` is 4917. Find the numbers.
If x, y, and z are in continued proportion, then which of the following is true:
x : x = z : y
In the example below, find the ratio of the first number to the second.
121, 99
If a : b = 3 : 5, find (3a + 5b): (7a – 2b).
The cost of parking a bicycle is ₹ 5 and the cost of parking a scooter is ₹ 15. Find the simplest ratio of the parking cost of a bicycle to that of a scooter
If a bus travels 160 km in 4 hours and a train travels 320 km in 5 hours at uniform speeds, then the ratio of the distances travelled by them in one hour is ______.
The ratio 5 : 4 is different from the ratio 4 : 5.
