Question

Two friends Raju and Sanju plan to go from
Asansol to Kolkata by car. They travelled by
a car with a uniform speed of 40 kmph and
reached the destination in x hours. Next
day, Raju alone travelled from Asansol to
Kolkata on his new sports bike with a
uniform speed and reached the place one
hour earlier than their previous travel time.
The total time taken for travelling both the
days is 9 hrs
Question:1) What is the distance
between Asansol and Kolkata
A)
500 km
B)
400 km
C)
200 km
D)
120 kn​

Answer 1

Answer:

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Answer 2

Complete Question :- Two friends Raju and Sanju plan to go from Asansol to Kolkata by car. They travelled by a car with a uniform speed of 40 kmph and reached the destination in x hours. Next day, Raju alone travelled from Asansol to Kolkata on his new sports bike with a uniform speed and reached the place one hour earlier than their previous travel time. The total time taken for travelling both the days is 9 hrs .

Question:1) What is the distance between Asansol and Kolkata .

A) 500 km

B) 400 km

C) 200 km

D) 120 kn

Solution :-

Let us assume that,

• Distance from Asansol to Kolkata = D km .
• Speed of Raju on bike = y km/h .

case 1) :- By car

→ speed = 40 km/h

→ Time = x hours .

so,

→ Distance = speed * time

→ D = 40x ------------- Eqn.(1)

case 2) :- By Bike

→ speed = y km/h

→ Time = (x - 1) hours.

so,

→ Distance = speed * time

→ D = y(x - 1) ----------- Eqn.(2)

also, given that,

→ Time (1) + Time (2) = 9 hours.

→ x + (x - 1) = 9

→ 2x - 1 = 9

→ 2x = 9 + 1

→ 2x = 10

→ x = 5 hours.

putting value of x in Eqn.(1) , we get,

→ D = 40x = 40 * 5 = 200 km (Option C) (Ans.)

Hence, the distance between Asansol and Kolkata is 200 km.

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