Advertisements
Advertisements
प्रश्न
Working 8 hours a day, Ashu can copy a book in 18 days. How many hours a day should he work so as to finish the work in 12 days?
Advertisements
उत्तर
\[\text{ If Ashu works for 8 hours daily, he can finish the work in 18 days .} \]
\[\text{ If he works for 1 hour daily, he can finish the work in } \left( 18 \times 8 \right) \text{ days or 144 days . } \]
\[ \therefore \text{ Number of hours he should work daily to finish the work in 12 days } = \frac{144}{12} = 12\]
संबंधित प्रश्न
A worker is paid Rs 210 for 6 days work. If his total income of the month is Rs 875, for how many days did he work?
A and B can do a piece of work in 18 days; B and C in 24 days and A and C in 36 days. In what time can they do it, all working together?
A and B can polish the floors of a building in 10 days. A alone can do \[\frac{1}{4}\] th of it in 12 days. In how many days can B alone polish the floor ?
If the thickness of a pile of 12 cardboard sheets is 45 mm, then the thickness of a pile of 240 sheets is ______ cm.
A car covers a distance in 40 minutes with an average speed of 60 km/h. What should be the average speed to cover the same distance in 25 minutes?
It is given that l varies directly as m. Find the constant of proportion (k), when l is 6 then m is 18.
It is given that l varies directly as m. Find l, when m is 33.
A bowler throws a cricket ball at a speed of 120 km/h. How long does this ball take to travel a distance of 20 metres to reach the batsman?
Here is a keyboard of a harmonium: What is the ratio of black keys to all keys on the given keyboard.
Many schools have a recommended students-teacher ratio as 35:1. Next year, school expects an increase in enrolment by 280 students. How many new teachers will they have to appoint to maintain the students-teacher ratio?
