By how much is three-fifth of 350 greater than four-seventh of 210?

The H.C.F and L.C.M of two numbers are 11 and 385 respectively. If one number lies between 75 and 125, then that number is :

Let a, b, c be positive integers such that a² +b² = c²(1+ab). then which is true?

100 + 50 x 2 = ?

What is the remainder when 91+92+93+....+98 is divided by 6?

Three numbers are in the ratio 1 : 2 : 3 and their H.C.F is 12. The numbers are:

The ratio of two numbers is 3:4 and their H.C.F is 4. Their L.C.M is?

If the sum of two numbers is 55 and the H.C.F and L.C.M of these numbers are 5 and 120 respectively, then the sum of the reciprocals of the numbers  is equal to:

1, 4, 2, 8, 6, 24, 22, 88, ___

3, 4, 9, 22.5, 67.5, 202.5, 810