Question

a) Which of the following quantities vary directly or indirectly with each other? (2) i) Number of pens and their cost. ii) Distance travelled (at constant speed) and petrol used. iii) Number of people available and time taken to do a job. iv) Area of land and its price.
b) If 35 men can reap a field in 8 days, in how many days can 20 men reap

the same field? If out of 35 men, 5 men did not work, how many days it

took to complete the work? (2)

c) Find ‘p’ when x and y are

inversely proportional. ​

Answer 1

Step-by-step explanation:

(I) directly

ii) indirectly

iii) indirectly

iv)directly

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