1. A man spent ½ of his money and then lost ¼ of the remainder. He was left with Tk. 3,600. How much did he start with?
2. A train 240 m long passes a pole in 24 seconds. How long will it take to pass a platform 650 m long?
3. Old name of Zimbabwe is-
5. After sitting in the sink for several days, the dirty, food- incrusted dishes became-