Question

Q24. A bus left with some definite number of
passengers. At the first stop, half of the
passengers left the bus and 35 boarded the bus.
At the second stop 1/5 of the passengers left and
40 boarded the bus. Then, the bus moved with 80
passengers towards its destination without
stopping anywhere. How many passenger were
there originally?
A. 25
B. 30
C. 40
D. 50​

Answer 1

Answer:

B) 30

Step-by-step explanation:

Let the original number of passengers be P.

At 1st stop, half passengers leave and 35 enter,

So passengers in bus = (P/2 +35)

At 2nd stop, 1/5th leave..so 4/5th is still present and 40 enter

Now the total in bus is =

4/5(P/2+35) +40 = 80

4/5( P/2+35) = 40

P/2+35= 40×5/4

P/2+35=50

P/2=15

P=15×2

P=30