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 men in a hall is less than 30.
If they get into groups of 4, 2 men will be left out.
If they get into groups of 7, 4 men will be left out.
Find the number of men in the hall.