Solve
10. A class of 50 pupils, 3/5 of them are boys. How many are girls?
11. Rex had P360. He spent 1/3 of his money. How much was left to him?
12. Ana had 150 oranges for sale. She sold 4/5 of them. How many were left? 13. Lucy has 12 /2 meter of cloth. If she uses 3/4 of it for girl's dress. How many dresses can she make?
14. How many 34 m pieces of ribbon can be cut from a 30-meter roll?
15. Robin can solve a problem in 2 %2 minutes. How many problems can be solved in 30 minutes?​