The average age of a woman and her daughter is 25 years. The ration of their ages is 7:3 respectively. What will be ratio of their ages after 9 years?
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1
Answer:
The force, which opposes the relative motion between two surfaces in contact is known as friction.
Step-by-step explanation:
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Step-by-step explanation:
w+d = 25×2 =50
w:d = 7: 3
w = 7/3d
7d/3 +d =50
10d/3 = 50
10d=150
d =15
w = 7/3×15 = 35
after 9 years
d = 15+9 = 24
w = 35+9 = 44
w:d = 44:24 = 11:6
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