A question on age (fr

Jeremy is 11 years old. Jeremy's father is 6 times as old as Jeremy's sister. Jeremy's sister is 30 years younger than his father.l
a) how old is Jeremy's father?
b) how old will Jeremy be when his father is 65 years old?

P5 Average (fr Celestine)

The Chipmunk and Acorns (fr Mr CCL)

Alvin, the chipmunk, is at the foot of a Supertree (See Point A).  There are some acorns at the top of the Supertree (See Point B).  How many ways are there for the chipmunk at Point A to reach the acorns at Point B?
Note: The chipmunk can only climb upwards and not downwards. 

P5 fraction and ratio (for Kanzen )

P5 Ratio (Fr: Priscilla, fr PRPS)

P5 Fraction (fr max, taken from Nanyang pr)

P5 average (fr max. Taken fr Nanyang pr ppr)

P5 percentage (fr max. Taken fr Nanyang pr ppr)

P5 geom (fr Priscilla, my pals

P5 whole numbers (fr Max, taken from Rosyth ppr) heuristics: simultaneous

P5 Fraction (fr Max, taken from Rosyth ppr)

P5 fraction (fr Max, taken from Rosyth ppr)

P5 whole numbers (fr Max, taken from Rosyth ppr)

P5 Fraction / Ratio (fr Elston)

P5 Ratio, Volume (fr Zac)

P5 fractions (fr Max, taken fr Ai Tong's paper)

P5 ratio ( fr Rachel thng)

Click here for my solution:

https://www.dropbox.com/s/n48a0av4y6fhneb/2013-08-31%2011.20.35.jpg

P5 percentage (fr Priscilla )

P5 average (fr Priscilla )

Sec1 Angles (Fr: Ryan C)

Click here for my solution:
https://www.dropbox.com/s/m62jw8ut5icot7h/2013-08-14%2017.30.19.jpg

P6 speed (fr shoe)

P6 Fraction and Ratio ( Fr Marwati. St Steven's Prelims 2012)

P6 percentage ( Fr Marwati. St Steven's Prelims 2012)

P6 Area and Perimeter ( Fr Marwati. St Steven's Prelims 2012)

Click here for my solution:

https://www.dropbox.com/s/v4rcr8tawz4q7s6/2013-08-01%2017.02.24.jpg

P5/P6 fraction ( Fr Marwati. St Steven's Prelims 2012)

Click here for my solution:

https://www.dropbox.com/s/idkiykqt1vzdmxj/2013-08-01%2016.42.35.jpg