Problem Solving in Mathematics Algebra
Work out the following algebra:
- Jenny is four times as old as her niece Tina. In 12 years, Jenny will be only twice as old as Tina. How old is Tina now?
- Matthew is 3 times as old as Jenny. In 7 years, he will be twice as old as she will be then. How old is she now?
- Jenny is four times as old as her niece Tina. In 12 years, Jenny will be only twice as old as Tina. How old is Tina now?
- Today, George is three times as old as his sister Lucy. In two years, Lucy will be half as old as George. How old will George be in two years?
- Sam is 22 years old. When he was 12 years old, he was 2 times the age of his sister Michelle. How old is Michelle now?
- Josh is 12 years old and his sister is three times as old as he. When Josh is 23 years old, how old would his sister be?
- Abigail is 6 years older than Jonathan. Six years ago she was twice as old as he. How old is each now?
- Four years ago, Alex was twice as old as Jake. Four years from now, Jake will be 3/4 of Alex’s age. How old is Alex?
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Problem Solving in Mathematics Algebra