Advertisements
Advertisements
प्रश्न
In a hostel of 50 girls, there are food provisions for 40 days. If 30 more girls join the hostel, how long will these provisions last?
Advertisements
उत्तर
In a hostel of 50 girls, food are available = 40 days
For 1 girl, food provisions = 50 × 40 = 2000 days
Now, for (50 + 30) girls i.e. 80 girls, the food provision = `2000/80`
= `200/8`
= 25 days
The food provisions will last for 25 days, if 30 more girls join.
APPEARS IN
संबंधित प्रश्न
Rehman is making a wheel using spokes. He wants to fix equal spokes in such a way that the angles between any pair of consecutive spokes are equal. Help him by completing the following table:
| Number of spokes | 4 | 6 | 8 | 10 | 12 |
| Angle between a pair of consecutive spokes |
90° | 60° | ... | ... | ... |
- Are the number of spokes and the angles formed between the pairs of consecutive spokes in inverse proportion?
- Calculate the angle between a pair of consecutive spokes on a wheel with 15 spokes.
- How many spokes would be needed if the angle between a pair of consecutive spokes is 40°?
A farmer has enough food to feed 20 animals in his cattle for 6 days. How long would the food last if there were 10 more animals in his cattle?
Two persons could fit new windows in house in 3 days.
One of the persons fell ill before the work started. How long would the job take now?
In which of the following table x and y vary inversely:
| x | 4 | 3 | 6 | 1 |
| y | 9 | 12 | 8 | 36 |
Which of the following quantities vary inversely as other?
The length x of a journey by bus and price y of the ticket.
1200 men can finish a stock of food in 35 days. How many more men should join them so that the same stock may last for 25 days?
16 taps can fill a petrol tank in 18 minutes. The time taken for 9 taps to fill the same tank will be _________ minutes
Meena had enough money to send 8 parcels each weighing 500 grams through a courier service. What would be the weight of each parcel, if she has to send 40 parcels for the same money?
If x varies inversely as y, then
| x | – | 60 |
| y | 2 | 10 |
If a deposit of Rs 2,000 earns an interest of Rs 500 in 3 years, how much interest would a deposit of Rs 36,000 earn in 3 years with the same rate of simple interest?
