A father said to his son, "I was as old as you are now when you were born". If the father's age is 38 years now, the son's age five years back was:

A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is :

What is the probability of getting a sum 9 from two throws of a dice?

How many3-digit numbers can be formed from the digits 1 – 7, if the digits cannot berepeated?

How manysets of answers are possible for a true or false test with 10 questions?

What is the sum of the measures of the interior angles of a regular heptagon?

A coffee shop offers 4 flavors of coffee: mocha, cappuccino, vanilla, and latte. Coffee may be served hot or coldand it comes in tall, regular and short sizes. In how many ways can thecustomer order his/her coffee?

Which of the statements are true?

I. A square is a rectangle.

II. A square is a rhombus.

III. A parallelogram is a rhombus.

IV. A rectangle is a parallelogram.

A show manufacturer conducted a survey of the

    average shoe size among women to help him

    decide what shoe size to put on display. What

    measure of central tendency would be most

    appropriate for his purpose?

Given: RS = 3, RT = 11, ad ST = 8.Which?

   of these points is between the other two?