Mary is twice older than her sister. In 5 years time, she will be 2 years older than her
sister. Find how old are they both now
Answers
Answered by
3
Answer:
Mary's age is 9 and her sister's age is 7.
Answered by
4
Mary=2x
Sister=x
After 5 years it is,
Mary=2x+5
Sister=x+5+2
2x+5=x+7
2x-x=7-5
x=2
Present age
=2x2=4 years is Mary
=2 years is her sister
Answer=Mary is 4 years old now and her sister is 2 years old now
Sister=x
After 5 years it is,
Mary=2x+5
Sister=x+5+2
2x+5=x+7
2x-x=7-5
x=2
Present age
=2x2=4 years is Mary
=2 years is her sister
Answer=Mary is 4 years old now and her sister is 2 years old now
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