Level 2 PSLE
The mass of a box with 50 identical glass marbles is 750 g. When 20 of the marbles are removed, the mass of the box with the remaining marbles is 510 g. What is the mass of each glass marble?
Level 1 PSLE
Some teachers and pupils from Success Primary School went on an field trip. There were 2 teachers in each group of 13 pupils. There were 66 more pupils than teachers. How many pupils went on the field trip?
Level 3 PSLE
Yoko wants to make 14 small identical triangles and 20 large identical triangles using wire. She has made 12 small triangles and 7 large ones using 640 cm of wire. The length of wire she
used for 3 large triangles is the same as that for 4 small stars.
How many large triangles can be made with the same length of wire used to make 12 small triangles?
What is the length of wire she needs to make the remaining triangles? Express your answer in cm.