• question_answer Suresh travelled 1200 km by air which formed 2/5 of his trip. The part of his trip which was one-third of the whole trip, he travelled by car. The rest of the journey was done by train. The distance travelled by train was A)  1600 km          B)  800 km C)         480 km           D)         1800 km

Let the total distance be x km. Then,    $\frac{2}{5}x=1200\,\Rightarrow \,x=3000\,\text{km}$ Distance covered by car $=\left( 3000\times \frac{1}{3} \right)\,\text{km}\,=1000\,\text{km}$ $\therefore$ Distance travelled by train = [3000 - (1000 + 1200)] = 800 km