Problem 1 :
Suppose 6 kg of salt contains 6 × 10^{7 }crystals. How many crystals are there is i) 7 kg of salt ii) 3.5 kg of salt ?
Problem 2 :
A machine in a Pepsi factory fills 680 bottles in 5 hrs. How many bottles will it fill in 3 hrs?
Problem 3 :
Bacteria enlarged 60000 times attain a length of 3 cm. what is the length of bacteria if it is enlarged 10000 times only.
Problem 4 :
A bus travels 40 kms in 30 minutes. If the speed of the bus remains same, how far can it travel in 3 hrs?
Problem 5 :
A contractor estimates that 5 persons could plumb Ravi’s house in 8 days. If he uses 6 persons instead of 5, how long should they take to complete the job.
Problem 6 :
If a box of pens is given to 25 children, they will get 2 pens each. How many would each get, if the number of children is reduced by 10?
Problem 7 :
A batch of tablets were packed in 10 boxes with 6 tablets in each box. If the same batch is packed using 12 tablets in each box. How many boxes would be needed?
Problem 8 :
In a toy company, it requires 36 machines to produce a car toys in 54 days. How many machines would be required to produce the same number of car toys in 81 days?
Problem 9 :
Two persons could fit the AC unit a house in 2 days one person fell ill before the work started, how long would the job take now?
Problem 10 :
In a college 7 period a day each of 45 minutes duration. How long each period be, if the school has 9 periods a day assuming the number of hours to be the same?
Problem 11 :
There are 200 students in primary school. They need 50liters of drinking eater/day. If 50 of them are reduced how many liters of water needed per day?
1) i) 7 kg of salt contains 7 × 10^{7 }crystals
ii) 3.5 kg of salt contains 3.5 × 10^{7 }crystals
2) x = 408 bottles
3) Length of bacteria is 0.5 cm.
4) bus travels 240 km in 3 hours.
5) x = 6 2/3 days
6) 5 pens
7) 5 boxes are needed
8) 24 machines would be required.
9) One person will complete the job in 4 days.
10) duration of every period is 35 min
11) 66.6 liters of water is required per day.
May 21, 24 08:51 PM
May 21, 24 08:51 AM
May 20, 24 10:45 PM