Advertisements
Advertisements
प्रश्न
30 persons can reap a field in 17 days. How many more persons should be engaged to reap the same field in 10 days?
Advertisements
उत्तर
∵ 30 persons can reap a field in 17 days.
1 person can reap the same field in 30 × 17 i.e. 510 days.
In 10 days, the number of persons required = `510/10` = 51 persons.
APPEARS IN
संबंधित प्रश्न
A machine in a soft drink factory fills 840 bottles in six hours. How many bottles will it fill in five hours?
If the thickness of a pile of 12 cardboards is 35 mm, find the thickness of a pile of 294 cardboards.
Rakesh can do a piece of work in 20 days. How much work can he do in 4 days?
A can do a piece of work in 40 days and B in 45 days. They work together for 10 days and then B goes away. In how many days will A finish the remaining work?
Two mobiles cost 16,000 rupees. How much money will be required to buy 13 such mobiles?
If the cost of 3 books is ₹ 90, then find the cost of 12 books.
Devangi travels 50 m distance in 75 steps, then the distance travelled in 375 steps is ______ km.
For fixed time period and rate of interest, the simple interest is directly proportional to the principal.
Campus and Welfare Committee of school is planning to develop a blue shade for painting the entire school building. For this purpose various shades are tried by mixing containers of blue paint and white paint. In the following mixtures, decide which is a lighter shade of blue and also find the lightest blue shade among all of them.
| Mixture A | Mixture B |
 |
 |
If one container has one litre paint and the building requires 105 litres for painting, how many container of each type is required to paint the building by darkest blue shade?
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?
