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Tutor profile: Aamir L.

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Aamir L.
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Questions

Subject: Geometry

TutorMe
Question:

The circumference of a circle is (60*Pi). What is the area of the circle?

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Aamir L.
Answer:

Circumference of a circle of radius 'r' is (2*Pi*r). This means for the current circle, 2*Pi*r=60*Pi, therefore r=30. Area of the circle is Pi*r*r=900*Pi.

Subject: Basic Math

TutorMe
Question:

If a family has 3 children, what is the probability that at least one of them is a girl?

Inactive
Aamir L.
Answer:

Probability questions are best answered by creating first a list of all outcomes. Using 'B' for boy, and 'G' for girl, the outcomes possible for this family are: 1) 3 girls 2) 2 girls, 1 boy 3) 2 boys, 1 girl 4) 3 boys In this case there are 3 scenarios where there is atleast one girl. Hence the probability is: 3/4 or 0.75.

Subject: Algebra

TutorMe
Question:

If a+b=5 and a-b=1, how would you solve for a and b?

Inactive
Aamir L.
Answer:

You can simply substitute a=b+1 from the second equation into the first equation. That means, (b+1)+b=5, or 2b=4, hence b=2. a is, therefore (b+1) =3.

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