Question

If $a$, $b$ and $c$ are three consecutive multiples of $5$ then,

• A. a + b + c = 15
• B. b = a + 5
• C. c = b + 5
• D. a = c - 10

Answer 1

Answer: (B), (C), (D)

The correct options are
B

b = a + 5

C

c = b + 5

D

a = c - 10

The consecutive multiples of $5$ differ by $5$.

So, $b=a+5$

and $c=b+5$

$\Rightarrow c=a+5+5$

$\Rightarrow c=a+10$

$\Rightarrow a=c-10$