Question
20% of John's savings is $120 more than 30% of Brian's savings.
After John spends 5/6 of his savings, and Brian spends 1/2 of his savings, John has $20 more than Brian. How much did John and Brian save ?
"A Model A Day, Keeps The Algebra Away" - Chi Hung Chan
Focus primarily on upper primary school (P4,5,6) mathematics
No guess and check, no wordy solution, just "Model" answer
My SIX STEPS TO MODEL APPROACH
A must visit website for Singapore PSLE
20% of John's savings is $120 more than 30% of Brian's savings.
After John spends 5/6 of his savings, and Brian spends 1/2 of his savings, John has $20 more than Brian. How much did John and Brian save ?