Question

There are 50 teachers in a school. 40% of them are women and the rest are men. If 70% of the women and 80% of the men are married, find the number of unmarried teachers in the school.​

Answer 1

12 are unmarried

This is because 20 are women and 30 are men. Out of the 70% of the 20 are married which is 14. 80% of the men are married which is 24. If you subtract 14 from 20 you get 6. If you subtract 24 from 30 you get 6. Add them together and you get 12