Arithmetic Questions And Answers :: Chain Rule: part2

6.On a scale of a map 0.8 cm. represents 8.8 km. If the distance between two points on the map is 80.5 cm., the distance between these points is approximately :

7.If 3 person weave 168 shawls in 14 days, how many shawls will 8 persons weave in 5 days ?

8.If 22.5 metres of a uniform iron rod weighs 85.5 kg., what will be the weight of 6 meters of the same rod ?

9.If 300 men can do a piece of work in 16 days, how many men would do (1/5) of the work in 15 days ?

10.2 men and 7 boys can do piece of work in 14 days; 3 men and 8 boys can do the same in 11 days. 8 men and 6 boys can do 3 times the amount of this work in :