Ten years from now, the elder child will be 20+10 = <<10+20=30>>30 years old.

If the elder child is 20 years old now, the second born is 20-5 = <<20-5=15>>15 years old, 5 years younger than the firstborn.

The second-born will be 15+10 = 25 years old ten years from now.

The total age of the first and second-born 10 years from now will be 25+30 = <<25+30=55>>55

The third-born who is five years younger than the second born is 15-5 = <<15-5=10>>10 years old.

The third sibling's age ten years from now will be 10+10 = <<10+10=20>>20 years old.

The total age of the three siblings ten years from now will be 55+20 = <<55+20=75>>75 years.

# Answer

75
Question:
Three siblings are born 5 years apart, each. If the eldest child is 20 years old now, what's the total of the ages of the three siblings 10 years from now?
Answer:
Let's think step by step.

user
75
Three siblings are born 5 years apart, each. If the eldest child is 20 years old now, what's the total of the ages of the three siblings 10 years from now?
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