Start learning 50% faster. Sign in now
The speed of a car is 40% less than the speed of a bike.
Let’s assume the speed of a bike is ‘15y’.
speed of a car = 15y of (100-40)%
= 15y of 60%
= 9y
The sum of the speed of the bus and car is equal to the speed of the bike.
speed of the bus = 15y-9y = 6y
The time taken by a bus to cover (d-100) km distance in 9 hours.
(d-100)/6y = 9
(d-100) = 54y
d = (54y+100) Eq.(i)
If the time taken by car to cover (d+80) km distance is 2 hours more than the time taken by bike to cover (d+260) km distance.
(d+80)/9y = 2+ (d+260)/15y
Put the value of ‘d’ from Eq.(i) in the above equation.
(54y+100+80)/9y = 2+ (54y+100+260)/15y
(54y+180)/9y = 2+ (54y+360)/15y
(54y+180)/9y - (54y+360)/15y = 2
After solving the above equation, 0.4y+20 = 24
0.4y = 24-20
0.4y = 4
y = 10
Put the value of ‘y’ in Eq.(i).
d = (54x10+100) = 540+100 = 640
(i) The value of ‘d’ is the multiple of 16.
The above given statement is true.
(ii) The speed of the bike is 180 km/h.
Speed of bike = 15y = 15x10 = 150 km/h
The above given statement is not true.
(iii) The time taken by the car to cover (d+80) km is 8 hours.
time taken by the car to cover (d+80) km = (d+80)/9y
= (640+80)/(9x10)
= 720/90
= 8
The above given statement is true.
Which of the following statements about Avantika Vandanapu's recognition are correct?
I . She was named South Asian Person of the Year by Harv...
SEBI recently extended the deadline to May 1, ______ for implementation of swing pricing mechanism, for mutual fund schemes, aimed at discouraging large...
Which ministry's programme is the Technology Development Fund scheme, which seeks to foster cutting-edge technology and self-reliance in the Indian defe...
Which organization entered a two-year MoU with the Singapore Tourism Board to promote UPI transactions for Indian visitors in Singapore?
Which Article of the Constitution of India prohibits forced labour?
Who among the following is not a new member of the PMML society?
What is the main focus of India’s space sector reforms?
In November 2021, the RBI has authorised _______ as its agency bank for undertaking government businesses.
Who has been appointed as India's new Ambassador to the U.S. after retiring as Foreign Secretary?
“State of the Economy” report was released by which regulatory body in India?