The sum of two consecutive multiples of 6 is 66 . Find the smaller of these two multiples.

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

The product of two consecutive even numbers is 624. What is the sum of the two numbers?

The sum of the squares of two positive integers is 1025 and difference of their squares is 225 . The difference of the numbers is what percent of the product of these numbers ?

If $$N=3^{10}+3^{11}+3^{12}+3^{13},$$​then how many positive factors does N have ?

When $$100^{25}-25$$ is written in decimal notation, then the sum of digits will be

The sum of five consecutive multiples of 8 is 560. The smallest multiple is

A two-digit number is 4 times the sum of its digits and twice the product of the digits. The number is:

​The product of the predecessor of 201 and the successor of 4781 is:​

The number of positive prime integer <50 is