A bank opens at 9:30 am, and closes at 5:00p.m. How many working hours are there?​

An office opens at 9 a.m. and closes at 5.30 p.m. with a lunch break of 30 minutes. What is the ratio of lunch break to the total period in the office?

An office opens at 9 a.m.and closes at 5p.m. with a lunch interval of 30 minutes.What is the ratio of lunch interval to the total period in office?

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

10 men working 8 hours day can do a work in 30 days. In how many days will 12 men working 4 hours a day take do the same work?

A bus starts its journey at 5:30 a.m. and reaches its destination at 9:15 p.m. with a stoppage time of 2 hours. Find the ratio of the stoppage time to the total journey period.

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.