Question
PSLE
Names Number of cardboard
Olivia 7
Ellie r
Mason 5 + 8 r

The table shows the number of cardboard collected by 3 pupils.
  1. Find the total number of cardboard Olivia, Ellie and Mason collected. Express the answer in terms of r in the simplest form.
  2. If r = 10, find the average number of cardboard the 3 pupils collected.
3 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

PSLE
Names Number of cardboard
Olivia 7
Ellie r
Mason 5 + 8 r

The table shows the number of cardboard collected by 3 pupils.
  1. Find the total number of cardboard Olivia, Ellie and Mason collected. Express the answer in terms of r in the simplest form.
  2. If r = 10, find the average number of cardboard the 3 pupils collected.