a, b, c and d are four consecutive numbers.
a, b, c and d are four consecutive numbers. If the sum of a and dis 109, what is the product of b and c?
Answer/Solution
2970
Steps/Work
C
2970
Here d = a + 3
a + a + 3 = 109
2a = 106
a = 53
So, numbers are 53, 54, 55 and 56
∴ b × c= 54 × 55 = 2970
2970
Here d = a + 3
a + a + 3 = 109
2a = 106
a = 53
So, numbers are 53, 54, 55 and 56
∴ b × c= 54 × 55 = 2970