Which of the following system of units is not based on units of mass, length and time alone ?

Which one of the following system of units is not based on the units of length, mass and time alone?

Which of the following units is not a base unit?

Which of the following units is not a base unit?

The system of unit not only based on length, mass and time is

Express the following derived units in terms of the fundamental units of length, mass and time.

Imagine a system of units in which the unit of mass is 100 kg, length is 1 km and time is 1 minute Then 1 joule in this system is equal to

Imagine a system of units in which the unit of mass is 100 kg, length is 1 km and time is 1 minute Then 1 joule in this system is equal to

In a system of units, the units of mass, length and time are 1 quintal, 1 km and 1h, respectively. In this system 1 N force will be equal to