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Mary is 16 years older than David, David is 13 years younger than Charlie. If the sum of their ages is 62, how old is Mary?

 Apr 8, 2020
 #1
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d= davids age

mary=d+16

charlie=d+13

d+d+16+d+13=3d+29=62

3d=33

d=11

Mary=d+16

Mary=27 years old

 

smileysmileysmiley

 Apr 8, 2020
 #2
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Let's call David's age x, Mary= 16+x, David= x, and Charlie= x+13. This means that 3x+29= 62. Solving for x we get x= 11. Mary= 16+x so 16+11= 27.

 

Hope it helps!

 Apr 8, 2020

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