Ram slept at 9:30 PM and got up at 6:00 AM. How much time did he sleep?

A boy slept at 9.45 p.m. and woke at 5.30 a.m. next morning. How much time did he sleep?

A person solds an article at Rs 30 after buying it for Rs 25. How much profit did he nade on it?

In a school, the bell is rung once after each half an hour. The school starts at 8:00 a.m. and closes at 1:30 p.m. The bell is rung 3 times continuously. at the time of beginning, at the time of lunch break at 10:00 and 10:30 a.m. and at the end. How many times is the bell rung every day?

A train1 leaves Meerut at5:00 am and reaches Delhi at 9:00 am. Another train2 leaves Delhi at 7:00 am and reaches Meerut at 10:30 am .at what time do they cross each other.