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?
How old will the eldest child be in 10 years? ** Ten years from now, the elder child will be 20+10 = <<10+20=30>>30 years old.
How old is the second born? ** 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.
How old will the second-born be in 10 years? ** The second-born will be 15+10 = 25 years old ten years from now.
What will the total age of the first and second-born be in 10 years? ** The total age of the first and second-born 10 years from now will be 25+30 = <<25+30=55>>55
How old is the third-born? ** The third-born who is five years younger than the second born is 15-5 = <<15-5=10>>10 years old.
What will the third sibling's age be in 10 years? ** The third sibling's age ten years from now will be 10+10 = <<10+10=20>>20 years old.
What will the total age of the three siblings be in 10 years? ** The total age of the three siblings ten years from now will be 55+20 = <<55+20=75>>75 years.
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