The present age of rajini and kamal are in the ratio of 4:5. After 5 years, the ratio of their ages will become 9:11. Find the sum of their present ages?
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Answer:
90
Step-by-step explanation:
Present ages of rajini & kamal are 4x & 5x
after 5yrs,
4x+5 : 5x+5 = 9:11
11(4x+5) = 9(5x+5)
45x - 44x = 55 - 45
x = 10
sum of their present ages = 4x + 5x = 40 + 50 = 90
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