Question
The lengths of trains 'P' and 'Q' are 180 metres and 120
metres respectively. Train 'P' crosses a platform 'Y' of 240 metres in 24 seconds. If 'P' and 'Q' cross each other while moving in opposite directions in 12 seconds, then find the time taken by 'Q' to cross the platform 'Y'.Solution
ATQ,
Let the speed of 'P' be 'x' m/sec So, total distance covered by 'P' while crossing the platform = (180 + 240) = 420 metres ATQ, 420 = x × 24 So, x = 17.5 m/sec Let the speed of 'Q' be 'y' m/sec Relative speed of 'P' with respect to 'Q' = (x + y) = (17.5 + y) m/sec Total distance = 180 + 120 = 300 metres ATQ, 300 = (17.5 + y) × 12 => 17.5 + y = 25 => y = 25 - 17.5 = 7.5 m/sec So, time taken by 'Q' to cross the platform = (120 + 240) ÷ 7.5 = 360 ÷ 7.5 = 48 seconds
The lower leaves become rusty brown near the base and ultimately dry up in rice due to the deficiency of
What is the name of the jointed filamentous structures located in the 10th segment of both male and female cockroaches?
What is the budget allocated for the “PM Formalisation of Micro food processing Enterprises (PMFME) Scheme” over five years?
Under NRLM, a revolving fund of Rs _____ is given to every SHG which follows Panchsutras of regular meetings, savings, internal lending, recoveries, and...
Calculate the seed rate (kg/ha) of wheat, if crop is sown at spacing of 18 cm×3 cm and rest weight of seed is 44 gram
which vitamin deficiency results in a condition known as 'crazy chick disease' or encephalomalacia (softening of the brain)?
Calculate the plant population of maize in 6000 m² area, if it is sown at a spacing of 60cm × 25 cm
Which of the following is not the classified form of conjugated proteins?
Trogoderma granarium is important stored grain pest which is commonly known as:
Optimum temperature for sowing wheat is
Relevant for Exams:
