In the questions given below, use the following notations:
A “ B means ‘add B to ‘;
A ‘ b means ‘subtract B from A’;
A @ B means ‘divide A by B’;
A, B means ‘multiply A by B’;
Now, answer the following question.
The time taken by two running trains in crossing each other is calculated by dividing the sum of the lengths of two trains by the total speed of the two trains. If the length of the first train is L1, the length of the second train is L2, the speed of the first train is V1 and the speed of the second train is V2, which of the following expression would represent the time taken?
(A) (L1 “ L2) , (V2” V2)
(B) {L1 “ L2) @ (V1 “ V2)
(C) [(L1 “ L2) @ (V1 “ V2)] , 60
(D) (L1 ‘ L2) @ (V1’ V2)
