If (3x+5y)/ (3x-5y) = 7/3. find x : y

(i) If , Find x : y
(ii) ) If a : b = 3 : 11, find (15a – 3b) : (9a + 5b). a

Solution:

(i) A woman reduces her weight in the ratio 7 : 5. What does her weight become if originally it was 91 kg?
(ii) A school collected Rs 2100 for charity. It was decided to divide the money between an orphanage and a blind school in the ratio of 3 : 4. How much money did each receive?

Solution:

More Solutions:

• If x + 5 is the mean proportion between x + 2 and x + 9.
• Find two numbers such that the mean proportional.
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• Prove that, If (x/a) = (y/b) = (z/c).
• Prove that, if (a/b) = (c/d) = (e/f).