Question
Two cars, ‘X’ and ‘Y’, started from town ‘M’
and ‘N’ respectively towards each other at the same time. When they crossed paths after 6 hours, car ‘Y’ had covered 90 km more than car ‘X’. What distance did car ‘X’ cover in 4 hours if the total distance between the towns is 510 km?Solution
ATQ,
Let distance travelled by car ‘X’ at the time of meeting = ‘x’ km
So, distance travelled by car ‘Y’ at the time of meeting = ‘x + 90’ km
According to question;
x + x + 90 = 510
Or, 2x = 420
Or, x = 210
Distance travelled by car ‘X’ in 6 hours = 210 km
Speed of car ‘X’ = 210 / 6 = 35 km/h
Distance travelled by car ‘X’ in 4 hours = 35 × 4 = 140 km
- Rohit and Usha can complete a task individually in 24 days and 60 days, respectively. When they work together along with Vipul, the same task is finished i...
A, B and C can complete a work in 10, 20 and 15 days respectively. A left the work 3 days before the work was completed and B left 1 days after A had le...
‘A’ and ‘B’ can do a piece of work in 20 days and 32 days, respectively. If they started the work together and worked on it for 9 days, then fin...
P alone can finish a piece of work ‘M’ in 6 days while Q takes 3 days to finish it alone. P, Q and R working together can finish the work ‘N’ wh...
'A' and 'B' can complete a piece of work in 10 days, 'B' and 'C' can complete the work in 16 days, and 'A' and 'C' can complete the work in 20 days. Fin...
A does 2/5 of a work in 9 days. Then B joined him and they together completed the remaining work in 6 days. B alone can finish the whole work in
...
A’ and ‘B’ together can complete a work in 22 days while ‘A’ takes 33 days to complete the same work alone. If ‘C’ is 20% more efficient t...
A buffalo alone can plough field ‘A’ in 20 days. A Bull alone can plough the field ‘A’ in 32 days. Find the number of days taken by 2 bulls and ...
A and B can complete a job together in 30 days; B and C can complete the same job together in 25 days, while C and A can complete the same job together ...
- X and Y can complete a piece of work in 20 days. They worked for 10 days and left. Z completed the rest of the work in 10 days. Find how long Z would take ...
Relevant for Exams:
