book Maths Puzzle Numerical Ability

can u give me the meaning of age related problem and money problem? tnx for the help!!!

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book Other Question

a child must be 50 in tall to ride on a roller coaster . how would I determine how to find this answer?

H > 50

H > 50
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H < 50

H < 50
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Martina leaves home at 9am,bicycling at a rate of 24 miles hour, two hour later john leaves,driving at the rate of 48 miles hour. at what time will john catch up with martina?