Question

A boy say's , "I have as many brothers as sisters."His sister say's, "I have twice as many brothers as sisters." How many brothers and sisters are there in his family???​

Answer 1

Step-by-step explanation:

s = total sisters ; b = total brothers

s = b - 1

b = s + 1

s - 1 = b / 2

b = 2 (s - 1)

b = 2s - 2

2s - 2 = s + 1

s - 2 = 1

s = 3

s = b - 1

3 = b - 1

b = 4

Total siblings = 4 + 3 = 7

Answer 2

Answer:there are 7brothers and sisters