A lorry starts from banglore to mysore at 6.00
a.m, 7.00
a.m, 8.00
a.m.....10 p.m. similarly another lorry on another side starts from mysore to banglore at 6.00
a.m, 7.00
a.m, 8.00
a.m.....10.00 p.m. a lorry takes 9 hours to travel from banglore to mysore and vice versa. (i) a lorry which has started at 6.00
a.m will cross how many lorries. (ii) a lorry which has started at 6.00 p.m will cross how many lorries.
Answers
A lorry takes 9 hrs.
i) A lorry beginning at 6 a. m.
It will reach its destination at :
6.00 + 9 = 1500 hrs
15 00 - 1200 = 3 pm.
Meaning it will cross the 7 am, 8 am and 6 am train from the other town.
The train that left at 10 pm will reach at :
10. 00 + 9 = 1900hrs
This train arrives at 7 a. m and by this time the 6 a.m train has left meaning they cross.
Therefore the 6 a.m train crosses the four trains from the other side.
ii) A lorry starting at 6 pm.
This lorry should arrive at :
6.00 + 9 = 1500
1500 - 1200 = 3.00 a.m
This train arrives at 3 am when the 6am,the 7am and the 8 am have not yet left.
Since as it arrives at 3 am the 10pm train arrives at 7am in the other town then it means on the way it crosses the 10pm train.
Answer:
I don't know is the answer