Q11. A school has periods a day each of minutes duration. How long would each period be, if the school has periods a day, assuming the number of school hours to be the same?
Q10. Two persons could fit new windows in a house in 3 days.
(ii) How many persons would be needed to fit the windows in one day?
Q10.Two persons could fit new windows in a house in 3 days.
(i) One of the persons fell ill before the work started. How long would the job take now?
Q9. A car takes hours to reach a destination by travelling at the speed of . How long will it take when the car travels at the speed of ?
Q8. A factory requires machines to produce a given number of articles in days. How many machines would be required to produce the same number of articles in days?
Q7. A batch of bottles were packed in boxes with bottles in each box. If the same batch is packed using bottles in each box, how many boxes would be filled?
Q6. A contractor estimates that persons could rewire Jasminder’s house in days. If, he uses persons instead of three, how long should they take to complete the job?
Q5. A farmer has enough food to feed animals in his cattle for days. How long would the food last if there were more animals in his cattle?
Q4. If a box of sweets is divided among children, they will get sweets each. How many would each get, if the number of the children is reduced by ?
Q3. 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.
(iii) How many spokes would be needed, if the angle between a pair of consecutive spokes is ?
Number of spokes |
4 | 6 | 8 | 10 | 12 |
Angle between a pair of consecutive |
.... | .... | .... |
Q3. 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.
(ii) Calculate the angle between a pair of consecutive spokes on a wheel with 15 spokes.
Number of spokes |
4 | 6 | 8 | 10 | 12 |
Angle between a pair of consecutive |
.... | .... | .... |
Q3. 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.
(i) Are the number of spokes and the angles formed between the pairs of consecutive spokes in inverse proportion?
Number of spokes |
4 | 6 | 8 | 10 | 12 |
Angle between a pair of consecutive |
.... | .... | .... |
Q2. In a Television game show, the prize money of ` 1,00,000 is to be divided equally amongst the winners. Complete the following table and find whether the prize money given to an individual winner is directly or inversely proportional to the number of winners?
Number of winners |
1 | 2 | 4 | 5 | 8 | 10 | 20 |
Prize for each winner (in Rs.) |
1,00,000 | 50,000 | .... | .... | .... | .... | .... |
Q1. Which of the following are in inverse proportion?
(i) The number of workers on a job and the time to complete the job.
(ii) The time taken for a journey and the distance travelled in a uniform speed.
(iii) Area of cultivated land and the crop harvested.
(iv) The time taken for a fixed journey and the speed of the vehicle.
(v) The population of a country and the area of land per person.
Observe the below table and find which pair of variables (here x and y) are in inverse proportion.
iii)
Observe the given table and find which pair of variables (here x and y) are in inverse proportion.
ii)
Observe the following tables and find which pair of variables (here x and y) are in inverse proportion.
i)
Q2. Principal = Rs.1000, Rate = 8% per annum. Fill in the following table and find which type of interest (simple or compound) changes in direct proportion with time period.
Q1. Observe the below table and find if x and y are directly proportional.
Q1. Observe the given table and find if x and y are directly proportional.