cruz63
01.07.2019 •
Mathematics
Gias is 4 years younger that her sister, the sum of their age is 74, how old is joy
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Ответ:
Well, assuming Joy is Gias' sister, first we subtract 4 from the whole: 74 - 4 = 70. Then, we devide by 2. 70/2 =35. Then, for Joy's age, we add 4: 35 + 4 = 39. So Gias is 35 and Joy is 39. 35 + 39 = 74.
Otherwise, you never said Joy is Gias' sister. So in the case that it is a trick question, Joy could be anything... :-)
Ответ:
5
Step-by-step explanation: