Question

anirudh has as many sisters as brothers.Anu, Anirudh's sister,has twice the number of brothers as she has sisters. Find how many brothers and sisters Anitudh has​

Answer 1

Answer:

Anirudh has 3 brothers and 3 sisters

Step-by-step explanation:

anirudh has as many sisters as brothers.Anu, Anirudh's sister,has twice the number of brothers as she has sisters. Find how many brothers and sisters Anitudh has​

Let say Anirudh has​    B brothers & S  Sister

B = S

Total Boys = B + 1  ( B Brothers  + Anirudh)

Total Girls = S   ( S sisters)

so Anu  has  B + 1 brothers  & S - 1   Sisters    ( S Girls - Anu)

Now Anu has twice the number of brothers as she has sisters.

B + 1 = 2(S - 1)

B + 1 = 2(B - 1)   ( as S = B)

B + 1 = 2B - 2

=> B = 3

Anirudh has 3 brothers and 3 sisters