Advertisements
Advertisements
प्रश्न
If 9 girls can prepare 135 garlands in 3 hours, how many girls are needed to prepare 270 garlands in 1 hour?
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 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.
6 men can complete the electric fitting in a building in 7 days. How many days will it take if 21 men do the job?
Neha types 75 pages in 14 hours. How many pages will she type in 20 hours?
If two quantities x and y vary directly with each other, then ______
If the thickness of a pile of 12 cardboard sheets is 45 mm, then the thickness of a pile of 240 sheets is ______ cm.
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
Distance travelled by an auto-rickshaw and time taken.
From the following table, determine if x and y are in direct proportion or not.
| x | 4 | 7 | 10 | 16 |
| y | 24 | 42 | 60 | 96 |
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 C | Mixture D |
 |
 |
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?
Here is a keyboard of a harmonium: What is the ratio of black keys to all keys on the given keyboard.
