The ratio of a's and b's ages is 4 : 5. If the difference between the present age of b and the age of a, 5 years hence is 3, then what is the total of present ages of a and b?
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Answer:72
Step-by-step explanation:
Ratio of A's age and B's age = 4:5... 4x , 5x
After 5 years, age of A = 4x + 5
Given:
5x - (4x+5) = 3
x - 5 = 3
x = 8
Present age of A = 4x = 32
Present age of B = 5x = 40
Sum total of ages = 32+40 = 72
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