I was sitting alone in a park. After a while there came an old man followed by an old lady. They were followed by two couples who were accompanied by a child each. What was the number of total persons present in park?
S.N | Details | Number |
1. | I was sitting alone in a park | 1 |
2. | After a while there came an old man and a old lady | 1+1=2 |
3. | Two couples | 2+2=4 |
4. | accompanied by a child each | 1×2+1×2=4 |
5. | Total number pf persons present | 1+2+4+4=11 |