If a box of sweets is divided among 24 children, they will get 5 sweets each. How many would each get, if the number of the children is reduced by 4?
According to the question:
a box of sweets is divided among 24 children, they will get 5 sweets each
total no of sweets = 24 × 5 = 120
the number of the children is reduced by 4.
Now, total no of children = 24 – 4 = 20
Sweets get by each children = 120/20 = 6
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.
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 ofconsecutive spokes in inverse proportion?
(ii) Calculate the angle between a pair of consecutive spokes on a wheel with 15spokes.
(iii) How many spokes would be needed, if the angle between a pair of consecutive spokes is 40°?