Progress tracking tools for students
FREE Video Lesson Worth $20!
10,000 Math Questions From P1 to P6!
Access 300 Hours of Video Explanations!
Video Tutorials to Tough PSLE Questions!
Step-by-step worked solutions
Sign in / Sign up
Need dedicated, 1-1 help? PSLE A* 2020 1-1 Tuition By Mr SingaporeMathGuru Results Guaranteed!*
Click here to learn more
The number of Spanish books in a book store is 180 more than the number of German books and 120 more than the number of French books.
If the average number of Spanish, German and French books in the store is 1800, find the average number of German and French books.