Let the distance Vishal travelled by bus be x km and by aeroplane be y km.
According to the first condition,
x + y = 1900 …(i)
∴ Time required to cover x km by bus = x/60 hr
Time required to cover y km by aeroplane
= y/700 hr
According to the second condition,
Multiplying equation (i) by 6, we get
6x + 6y = 11400 …(iii)
Subtracting equation (iii) from (ii), we get
∴ The distance Vishal travelled by bus is 150 km.