1.

24 men take 30 daysto compelete a work. 12 more men join the work. In how many days the work will be compeleted now?​

Answer»

Answer:

24 men (X1) takes 30 days (Y1)

24 +12 = 36 men (X2) takes ????? days (Y2)

Using Indirect proportion :

X1Y1 = X2Y2

24 × 30 = 36 × Y2

720 /36 = Y2

20 days = Y2.

Therefore it takes 20 days to complete the work.



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