Question

Sum of three consecutive number is 90 find the first number ​

Answer 1

Answer:

Sum of three consecutive numbers = 3 x smallest number + 1 + 2. Oh! that is the same as saying Sum of three consecutive numbers = 3 x smallest number + 3. By the distributive law of multiplication over addition, we can say that the Sum of three consecutive numbers = 3 x (smallest number + 1).