Stage: 2 Challenge Level: 
Grandma had made pies for a bake sale. She had carefully put equal amounts of mixture in each pie tin and was now trying to find the weight of the pies.
She had a problem; she only had one $200$ gram weight and one $125$ gram weight.
She found that one pie balanced on the scale with both weights and a quarter of a pie.
How heavy was each pie?
Calculating with fractions. Trial and improvement. Working systematically. Fractions. Place value. Mass and weight. Addition & subtraction. Investigations. Multiplication & division. Factors and multiples.
Published December 2000.
Copyright © 2007. University of Cambridge. All rights reserved.
NRICH is part of the family of activities in the Millennium Mathematics Project, which also includes the Plus and Motivate sites.
email: nrich@damtp.cam.ac.uk
