The free flow speed of a highway is 100 km/h and its capacity is 4000 vehicle/h. Assume speed density relation is linear.

For a traffic volume of 2000 vehicle/h, choose all the possible speeds (in km/h) from the options given below (round off to two decimal places).

On a two-lane highway, a horizontal curve of radius 300 m is provided. The design speed is $80 \mathrm{~km} / \mathrm{h}$.

If the longest wheelbase of vehicle expected on this highway is 7 m , then the extra widening required (in m ) is ________ (round off to two decimal places).

Even though I had planned to go skiing with my friends, I had to __________ at the last moment because of an injury.

Select the most appropriate option to complete the above sentence.

The President, along with the Council of Ministers, _________to visit India next week. Select the most appropriate option to complete the above sentence.