How many numbers greater than 5600 can be obtained from digits 4,5,6,7 without repitition of the digits?

How many numbers of four digit can be formed out the digits 1,2,3,4,5,6 without repitition of digits?

How many numbers greater than 200000 can be formed.by using 0, 1, 2, 3, 4, 5 without repetitions?

How many even numbers greater than 300 can be formed with the digits, 1, 2, 3, 4, 5 which cannot be repeated?

How many numbers greater than 1000 but not greater than 4000 can be formed using the digits 0, 1,2, 3, 4, repetitions of digits being allowed?

How many numbers lying between 3000 and 6000 can be constructed by the digits 1,2,3,4,5,6 assuming that no digit is repeated in any number?

How much copper can be obtained from 200g CuSO_4 ?

How many four digit numbers can be constructed by the digits 2,3,4,5,6,7 which are divisible by 5 assuming that no digit is repeated in any number?

How many numbers between 100 and 1000 such that all digits of the numbers are only 3 or 9?

How many numbers of two digit are divisible by 5?

How many numbers between 100 and 1000 such that the digits in the unit place of the numbers is 9 only?