Question
PSLE
The photocopying rates of two machines L and M are as shown. Both machines were use to make a copy of a set of notes which had been divided into teacher set and student set. Machine L took 5 minutes is to photocopy teacher set and Machine M took 7 minutes to photocopy student set.
  1. How many pages were there altogether in the set of notes?
  2. Another copy of the same set of notes was made using Machine M only. How many minutes did Machine M take?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

PSLE
The photocopying rates of two machines L and M are as shown. Both machines were use to make a copy of a set of notes which had been divided into teacher set and student set. Machine L took 5 minutes is to photocopy teacher set and Machine M took 7 minutes to photocopy student set.
  1. How many pages were there altogether in the set of notes?
  2. Another copy of the same set of notes was made using Machine M only. How many minutes did Machine M take?