TCS Company Numerical Ability Age Problem

Now pet's age is two times when paul was once.but at that time paul's age=pet's current age.how old is pet?

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TCS Other Question

Entry ticket to an exhibition ranges from 1p to 31p. you need to provide exact change at the counter. you have 31p coin.in how many parts will you divide 31p so that you will provide the exact change required and carry as less coins as possible? A block has dimensions 10,9,5 units.how many units cube is needed to make a block of that size?