how basic division can be solved

The strength of a basic solution can be increased by

How many 5 -digit numbers divisible by 4 can be formed using digits 0,1,2,3

A basic buffer solution can be prepared by mixing the solution of

There asre 5 questiions in a question paper. In how many ways can a boy solve one or more questions?

In the given thermometer, the bigger marks read one degree. Also, there are ten small divisions between them. How can one small division be read in the given thermometer?

Which of the following option can be used as basic connectives