How to Stop Feeling Tired in the Afternoon | While Studying | At Work | 10 PRO TIPS |#shorts

How to Stay Focused While Studying

How To Score 40 Marks in Maths | JEE MAINS 2020 | 1 Week Study Plan | Revision Tips

How To Score 600+ in NEET 2020 By 2 Month Preparation | Study Plan For NEET 2020 | Revision Tips

How To Score 40 Marks in Chemistry | JEE MAINS 2020 | 1 Week Study Plan | Revision Tips

A, B and C can finish a piece of work in 10 days, 12 days and 15 days respectively. A and B started working together. After working for one day A left the work while C joins. After two days B left the work while A joins. There is holiday on fourth day and then process is repeated till the work in finished. In how many days work would be finished?

Four men light a 250 kg box to a height of 1m and hold it without raising or lowering it. (a) How much work is done by the men in lifting the box ? (b) How much work do they do in just holding it ? (c ) why do they get tired while holding it ? (g = 10m//s^2)

Which of the following circuits will still be dangerous even if the fuse blows off and electric iron stops working during a short circuit ?