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
\[\text{ If Ashu works for 8 hours daily, he can finish the work in 18 days } . \]
\[\text{ If he works for 1 hour daily, he can finish the work in } \left( 18 \times 8 \right) \text{ days or 144 days . } \]
\[ \therefore \text{ Number of hours he should work daily to finish the work in 12 days } = \frac{144}{12} = 12\]
APPEARS IN
संबंधित प्रश्न
In a library 136 copies of a certain book require a shelf-length of 3.4 metre. How many copies of the same book would occupy a shelf-length of 5.1 metres?
The amount of extension in an elastic string varies directly as the weight hung on it. If a weight of 150 gm produces an extension of 2.9 cm, then what weight would produce an extension of 17.4 cm?
If 25 men earn Rs 1000 in 10 days, how much will 15 men earn in 15 days?
A cistern can be filled by one tap in 8 hours, and by another in 4 hours. How long will it take to fill the cistern if both taps are opened together?
A birthday party is arranged in third floor of a hotel. 120 people take 8 trips in a lift to go to the party hall. If 12 trips were made how many people would have attended the party?
If two quantities x and y vary directly with each other, then ______
If two quantities x and y vary directly with each other, then ______ of their corresponding values remains constant.
If 45 persons can complete a work in 20 days, then the time taken by 75 persons will be ______ hours.
The variable x varies directly as y and x = 80 when y is 160. What is y when x is 64?
44 cows can graze a field in 9 days. How many less/more cows will graze the same field in 12 days?
