Sanchi's lunch break is for 45 minutes. She uses 20 minutes to eat and 15 minutes to help a friend to do her home-work. How much time does she have left?
A20 minutes
B5 minutes
C15 minutes
D10 minutes
Sanchi's lunch break is for 45 minutes. She uses 20 minutes to eat and 15 minutes to help a friend to do her home-work. How much time does she have left?
A20 minutes
B5 minutes
C15 minutes
D10 minutes