Find all ordered pair of integers (a,b) such that a(a + 1) = b(b + 1)(b +2)(b + 3)

8

12

16

24

none of these

Correct Answer : A

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

Five sixth of a number is more than 30% of another number by 25. What is the ratio of the first number to the second number