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OpenStudy (migitmack):
Mary is 14 years younger than her sister Jane. In four years, Jane will be 3 times older than Mary. How old is Jane now? 3 7 17 21 Is she 21
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OpenStudy (anonymous):
the answer is 17
OpenStudy (anonymous):
present age of mary=x,jane=y x=y-14; y+4=3(x+4) solving we get,x=3,y=17
OpenStudy (anonymous):
after 4 more years jane will be 21,so wait for 4 more years..;)
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