A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sistes are there in the family?
This can actually be solved using mathematical equations. It's mosre or less like word problem!
Let the number of girls be x Let the number of boys be y
A girl has as many brothers as sisters
So, x - 1 = y
each brother has only half as many brothers as sisters
So, y - 1 = x ÷ 2 we can rewrite this as 2(y - 1) = x
A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sistes are there in the family?
This can actually be solved using mathematical equations. It's mosre or less like word problem!
Let the number of girls be x Let the number of boys be y
A girl has as many brothers as sisters
So, x - 1 = y
each brother has only half as many brothers as sisters
So, y - 1 = x ÷ 2 we can rewrite this as 2(y - 1) = x
Putting x = 2(y - 1) into x - 1 = y
2y - 2 - 1 = y
Collecting like terms
2y - y = 2 + 1
y = 3
Putting y = 3 into x - 1 = y
x - 1 = 3
x = 3 + 1 = 4
So, x = 4; y = 3
Answer: 4 sisters, 3 brothers
BY Riddles Repository - Answers
Warning: Undefined variable $i in /var/www/tg-me/post.php on line 283
Bitcoin mining is the process of adding new transactions to the Bitcoin blockchain. It’s a tough job. People who choose to mine Bitcoin use a process called proof of work, deploying computers in a race to solve mathematical puzzles that verify transactions.To entice miners to keep racing to solve the puzzles and support the overall system, the Bitcoin code rewards miners with new Bitcoins. “This is how new coins are created” and new transactions are added to the blockchain, says Okoro.
Telegram is riding high, adding tens of million of users this year. Now the bill is coming due.Telegram is one of the few significant social-media challengers to Facebook Inc., FB -1.90% on a trajectory toward one billion users active each month by the end of 2022, up from roughly 550 million today.
