Piyush Bharti - 90%

If the coefficient of variation of two series are 75% and 90% and their standard deviation 15 and 18, then their mean is

Show that time required for the completion of 99% of the first order reaction is twice the 90% of completion of the reaction.

The number of silver atoms present in a 90% pure silver wire weighing 10 g is (Ag = 108)

Half life of a first order reaction is 2 hours , what time is required for 90% of the reactant to be consumed ?

Solve the given equation 18% of 90% of 500?

Sometimes 60% Marks is better than 90% | Motivation Video