If a three digit number is divided into three two digit numbers and if all these three two digit numbers from an A.P. with a common difference of 20.How many three digit numbers satisfy this condition?

54

45

46

55

Correct Answer : C

A number exceeds its four seventh by 18. What is the number

If m and n (n > 1) are whole numbers, such that mn = 121, the value of (m – 1)n + 1 is

if x/y=3/4 .the value of (6/7+y-x/y+x) is