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Aleks04 [339]
3 years ago
8

The ratio of Sunita's age to Mark's age is currently 3 to 4, and in 12 years, it will be 5 to 6. What is Mark's current age?

Mathematics
2 answers:
Romashka [77]3 years ago
7 0

Answer:

24 years.

B is correct option.

Step-by-step explanation:

Let Sunita's current age is x and that of Mark's is y.

Hence, we have

\frac{x}{y}=\frac{3}{4}\\\\x=\frac{3}{4}y.......(1)

Now, in 12 years the ratio will be 5 to 6. Thus, we have

\frac{x+12}{y+12}=\frac{5}{6}

Cross multiplying, we get

6x+72=5y+60

Plunging, the value of x from equation (1)

6(\frac{3}{4}y)+72=5y+60\\\\\frac{9y}{2}+72=5y+60\\\\\frac{y}{2}=12\\\\y=24

Therefore, Mark's current age is 24 years.

neonofarm [45]3 years ago
6 0

Mark's current age is 24  


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