MA-796
Forming simultaneous equations
Lower Sec Maths · Secondary 2 · Medium · Forming simultaneous equations
At a concert, there are adults and 60 children. After 20 more adults arrive and 10 children leave, the probability of randomly choosing an adult becomes .
Find the number of adults at first.
Find the number of adults at first.
- 30
- 40
- 44
- 48
Sign in to check your answer and see the hint and the worked explanation. Free on PrepLab High.