A man is engaged for planting trees for 10 hours. He plants 10 trees in an hour. He Takes rest for 30 min after every hour. How many trees does he plant in 10 hours.
100
50
70
45
C.
70
Man plants trees in 1 hour = 10
A man takes rest for 30 min.
So, the man plants 10 trees in 1 hour 30 min
Man will plant trees in (1.5 x 6) = 9 = 6 x 10 = 60
therefore, man will plant trees in 10 hours = 60+10 = 70
