The sum of two natural numbers is 40 their HCF and LCM are 5 and 75, respectively. Find them.

The sum of first n odd natural number is

The sum of two numbers is 75 and their HCF is 15 and LCM is 90 Find the number.

The sum of two natural number is 15.If the sum of thier reciprocal is 3/10 ,find the number.

The sum of two positive numbers is 13 and their G.M. is 6. Find them.

The sum of three numbers in A.P. is 15. If 1, 4 and 19 are added to them respectively, the results are in G.P., find them.

The sum of three numbers in A.P. is 18. If 2, 4 and 11 are added to them respectively, the results are in G.P., find them.

The difference of a pair of number is 10 and their HCF is 5 and LCM is 175 ,find the numbers.

The A.M. and G.M. of two positive numbers are 25 and 24 respectively. Find them.

The A.M. and G.M. of two positive numbers are 15 and 9 respectively. Find them.

Find the sum of first 100 natural numbers divisible by 3.