Advertisements
Advertisements
Question
If (4x + 3y) : (3x + 5y) = 6 : 7, find x : y
Advertisements
Solution
7x (4x + 3y) = 6x (3x + 5y)
28x + 21y = 18x + 30y
28x − 18x = 30y − 21y
10x = 9y
`"x"/"y"=9/10`
∴ x : y = 9 : 10
APPEARS IN
RELATED QUESTIONS
Find triplicate ratio of 1 : 3
If `(a + b)/(am + bn)= (b + c)/(mb + nc )= (c + a)/(mc + na)` prove that each of theseccc `2/(m+n)`provided a + b + c ≠ 0
If 3x – 2y – 7z = 0 and 2x + 3y – 5z = 0 find x : y : z.
Divide Rs. 720 between Sunil, Sbhil and Akhil. So that Sunil gets 4/5 of Sohil’s and Akhil’s share together and Sohil gets 2/3 of Akhil’s share.
If P : Q = `1/2 : 1/3` and Q : R = `1 1/2 : 1 1/3`, find P : R.
The ratio of 10 kg to 100 kg is 1 : 10
Of the 288 persons working in a company, 112 are men and the remaining are women. Find the ratio of the number of men to the total number of persons.
In the following figure, division represents 1 cm:
Express numerically the ratios of the following distances:
AG : AD
Find two numbers whose sum is 100 and whose ratio is 9 : 16.
Present age of father is 42 years and that of his son is 14 years. Find the ratio of age of father to the age of son when father was 30 years old.
