Question

The sum of 4 consecutive odd numbers is 56. find the last number

Answer 1

Answer:

17

Step-by-step explanation:

4 Consecutive odd numbers will be :-

2x +1 , 2x+3 , 2x +5 , 2x+7

According to Question.,

2x+1 + 2x+3 + 2x+5 + 2x+7 = 56

8x + 16 = 56

8x = 40

x = 5

Last number will be :- 2x+7

= 2(5)+7

= 10 + 7

= 17

Rechecking :-

2x+1 = 10 +1 = 11

2x+3 = 10 +3 = 13

2x+5 = 10 +5 = 15

2x + 7 = 10+7 = 17

Adding ,

11+13+15+17 = 56