X is a series of five consecutive multiple of three whose average is 36 and Y is the series of four consecutive multiple of four, which second smallest number is 13 more than second highest number of X series. Find the sum of smallest number of X series and highest number of Y series?

28P3 is divisible by 9. What is the value of P?

How many numbers among 51, 62, 84, 97 are divisible by 9?

The product of two consecutive positive multiples of 5 is 750. What is the smaller of the two numbers?

A and B are two positive odd numbers. A × B = 9 and A < B. What is the value of A + B?

Which of the following is NOT equal to $$1\frac 34$$​?

How many $$\frac{1}{16}$$​ are in $$\frac{1}{4}$$​?