Start learning 50% faster. Sign in now
Let speed of train ‘A’ is ‘x’ km/h
So, Speed of train ‘B’ = ‘x + 72’ km/h
Let time taken by train ‘A’ to cover the whole distance is ‘t + 9’ hours
So, time taken by train ‘B’ to cover the whole distance = ‘t’ hours
So, x(t + 9) = (x + 72) × t
Or, x = 8t
And, x(t + 9) = 1520
Or, 8t(t + 9) = 1520
Or, t 2 + 9t – 190 = 0
Or, (t + 19)(t – 10) = 0
Or, t = 10
So, time taken by train ‘B’ to cover the whole distance = 10 hours
Which of the following options is most suitable for blank 1?
Find the appropriate word.
Select the most appropriate option to fill in blank 2.
Find the appropriate word.
Find the appropriate word.
Select the most appropriate option to fill in blank.
Select the most appropriate option to fill in blank.
1. We must recognize that politics
P. about the careers and fortunes
Q. citizens and not
R. and elections are about
S. the l...
Choose the most appropriate option for blank no. 4
Find the appropriate word.