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Question
Dear Ms.Janet, really need your help on the question appended below:-

1)Dharini has 1/7 as many stamps as paul. they have a total of 720 stamps. how many stamps should paul give dharini so that they have the same numbers of stamps?

2)francene baked 120 tarts, 4/5 of the tarts were chocolate tarts. the rest were strawberry tarts. she gave an equal number of chocolate and strawberry tarts away and had 7 times as many chocolate tarts as strawberry tarts left. how many tarts did she give away?

Answer
"Dharini has 1/7 as many stamps as Paul."
d = p/7

"they have a total of 720 stamps."
d + p = 720

substitute p/7 for d:
p/7 + p = 720
p = 630
d = p/7 = 90
Paul has 630 stamps; Dharina has 90 stamps.

If they have the same number of stamps, they each have 720/2 = 360 stamps.
630 - 360 = 270
Paul should give Dharina 270 stamps.
:::::
"Francene baked 120 tarts, 4/5 of the tarts were chocolate tarts. the rest were strawberry tarts."
4/5 of 120 = 96
There were 96 chocolate tarts, and 120-96 = 24 strawberry tarts.

"she gave an equal number of chocolate and strawberry tarts away and had 7 times as many chocolate tarts as strawberry tarts left."
96-x = 7(24-x)
96-x = 168-7x
6x = 72
x = 12

She gave away 12 chocolate tarts and 12 strawberry tarts, for a total of 24 tarts.

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Janet Yang

Expertise

Word problems are my favorite type of math questions! I would not feel comfortable answering questions that require specialized knowledge (Physics, Statistics, etc.) because I have not studied these in depth.

Experience

I tutor students (fifth through twelfth grades) and am a Top Contributor on Yahoo!Answers with over 24,000 math solutions.

Publications
Co-author of An Outline of Scientific Writing: For Researchers With English as a Foreign Language.

Education/Credentials
I have a Bachelor's degree in Applied Mathematics from the University of California at Berkeley, and a Master of Business Administration degree from The Wharton School.

Past/Present Clients
George White Elementary School. Homework Help program at the Ridgewood Public Library, Ridgewood, NJ. Individual students.

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