Question

Construction of a Formula)
(1) Find a formula for the sum S of any three consecutive
even numbers
(ii) Hence, calculate the value of S when the smallest
even number is 14.​

Answer 1

Step-by-step explanation:

Let the three consecutive numbers be (a+d), a, (a-d) ;

=> a + d + a + a - d

=>3a

So,

S = 3a