Level 2 PSLE
At a sale, Raymond bought 10 cups of the same kind. His sister bought 8 such cups. She also bought 3 plates at $4.50 each. Altogether, she spent $2.30 less than Raymond. What was the total amount of money Raymond and his sister spent?
Level 3
The ratio of the boys to the girls in school was 5 : 2. After 6 boys went home and 8 new girls came, there were 7 more boys than girls in the end. Find the number of children in the school at first.