Question

6.
the number Irom 50. Find the number.
12
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.
In 5 years time, Reshma will be three times old as she was 9 years ago. How old is she​

Answer 1

Answer:

Let mary sister present age=x

mary's age=2x

age of sister after 5 years=x+5

age of mary after 5 years=2x+5

according to problem

mary age after 5 years=(sisters ageafter 5 years)+2

2x+5=x+5+2

2x+5=x+7

2x-x=7-5

1x=2

x=2/1

x=2

Step-by-step explanation:

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