# Hi - Please treat this as urgent. Wondering if I can get examples/Samples/Animated Video to cover the concepts for the following scenario - 1) 20 men take 50 days to complete a tasks .How many days 10 men will take? (In this example - key is 1 man will take more days and hence for 10 men it is (50*20)/10 ) . Below example is slightly diff - 2) I can buy 50 pencil in 100 rupees. How many pencil can Ibuy in 30 rupees? (In this example - identifying a unit will require a dvidie unlike for above example identifying days for 1 men will require multiply).Hope this is clear. Need animated way of explaining this to my son. RgdsPradeep M

 MEN DAYS 20 50 10 x

Since men and days are inversely proportional, so we get
20 $×$ 50 = 10 $×$x

(2).

 pencils amount(Rupees) 50 100 30 x

Since amount and pencils are directly proportional, so

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