Advertisements
Advertisements
प्रश्न
If 56 workers can build a wall in 180 hours, how many workers will be required to do the same work in 70 hours?
Advertisements
उत्तर
Workers: Hours:: Workers: Hours
56 : 180 :: x : 70
∴ By inverse proportion
56 × 180 = x × 70
`⇒"x"=(180xx56)/70`
= 144 workers
APPEARS IN
संबंधित प्रश्न
22 men can dig a 27 m long trench in one day. How many men should be employed for digging 135 m long trench of the same type in one day?
36 men can do a piece of work in 7 days. How many men will do the same work in 42 days?
In a fort 150 men had provisions for 45 days. After 10 days, 25 men left the fort. How long would the food last at the same rate?
If 15 men can complete a piece of work in 30 days, in how many days will 18 men complete it?
If 3 men or 6 boys can finish a work in 20 days, how long will 4 men and 12 boys take to finish the same work?
A can do a work in 15 days and B in 20 days. If they together work on it for 4 days; what fraction of the work will be left?
A, B, and C can do a piece of work in 6 days, 12 days, and 24 days respectively. In what time will they altogether do it?
A and B working together can mow a field in 56 days and with the help of C, they could have mowed it in 42 days. How long would C take by himself?
A can do a piece of work in 20 days and B in 15 days. They worked together on it for 6 days and then A left. How long will B take to finish the remaining work?
Two pipes P and Q would fill an empty cistern in 24 minutes and 32 minutes respectively. Both the pipes being opened together, find when the first pipe must be turned off so that the empty cistern maybe just filled in 16 minutes.
