Archive | August, 2012

Hello Madam…

24 Aug

This madam is so glad to hear from you!

Thank you for writing in

22 Aug

A parent took the time to write to us recently:

We are glad to know that your child is enjoying and benefiting from our Math and Science classes.

Thank you for telling us.

Questions from Tina

21 Aug

Q1. Hanson had some one-dollars coins and some fifty-cent coins. The ratio of the number of one-dollar coins to the number of fifty-cent coins he had was 2: 5. Hanson took 140 fifty-cent coins to the bank and changed these fifty-cent for the same value of one-dollar coins. In the end, the number of one-dollar coins to the number of fifty-cent coins he had became 5:2. Find the value of the fifty-cent coins Hanson had at first.

Q2. Hotel Hollywood and Hotel Broadway had a total of 5200 guests. After 3/4 of the guests in Hotel Hollywood and 3/5 of the guests in hotel Broadway checked out, hotel Broadway had 260 more guests than Hotel Hollywood.How many guests did hotel Hollywood have at first?

Please click the following link for suggested solutions: Questions from Tina

Question from Dannie

18 Aug

1) NY primary school organised a 2-Day Charity Funfair. Admission tickets were sold to every visitor at a cost of $40. On the first day, 120 more children visited the funfair than adults. The number of children on the second day was 25% more than the number of children on the first day. The number of adults on the second day was 5% less than the number of adults on the first day. There were a total of 2570 people at the funfair on the second day.

a) Find the number of adults at the funfair on the first day.

b) What was the total sum of money collected from the sale of the admission tickets for both days?

2) Tina and Pat shared some cupcakes in the ratio of 4:7. Then Tina gave  of her cupcakes to Pat. What is the new ratio of the number of Tina’s cupcakes to the number of Pat’s cupcakes?

Click here for solution: Questions from Dannie

Question from WingKit

4 Aug

A number of passengers boarded an empty train at Station X. At Station Y, 2/5 of them got off and 80 passengers got on. At Station Z, 223 passengers got off and 38 got on the train. The train now had 3/8 of the number of passengers when it left Station Y.
(a) How many passengers were on the train when it left Station Z?
(b) How many passengers were on the train when it left Station X?

Click here for solution: Question from WingKit