Mathematics

Question

harold was 5 years older than Mary. In 10 years he found that 4 times his age exceeded twice Mary's age by only 50. How old were Harold and Mary in the beginning?

1 Answer


  • in the beginning¬†

    Harold X+5
    Mary X

    In 10 years

    Harold X+5+10 X+15
    Mary X+10 

    4(X+15)-2(X+10)=50
    4X+60-2X-20=50
    2X+40=50
    2X=50-40
    2X=10
    X= 10√∑2
    X=5

    Harold At The Beginning 5+5=10
    Mary At The Beginning 5
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