Mark is 3 years older than Jane. In 4 years, Mark will be 3/2 as old as jane. How old is Mark now?
1 answer:
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Get the sum of 65, 30 and 25 and divide their sum by the number of values that exist, which in this case is 3.
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Get the sum of 65, 30 and 25 and divide their sum by the number of values that exist, which in this case is 3.
Answer:
40