Question
How many different words can be formed with the letters
of the word PRACTICE such that each of the word begin with E and ends with R?Solution
When E and R are fixed as first and last letters of the word, then we have only 6 letters to be arranged. Hence required number of ways = (6 !)/(2 !) = 360
The rate of change of which of the following determines angular velocity?
If cream is removed from milk, its density –
Proteins are assembled from how many amino acids?
Kindly Study the following questions carefully and choose the right answer:
Transpiration is mainly effective during _______ ?
Group number and valency have no relation in
Two charges +4μC and +9μC are separated by 60 cm. Where should a third charge be placed so that it experiences zero net force? (from +4μC charge)
Which electromagnetic wave has the longest wavelength?
The centre of gravity of a sprinter during the race lies –
The SI unit of surface tension is: