The average age of a couple married four years ago was 25 years then. The average age of the family consisting of husband, wife and a child now is 20 years. What is the child’s present age?
Let the age of father 4 years ago be X Let the age of mother 4 years ago be Y
The average age of a couple married four years ago was 25 years then.
So, (x + Y) ÷ 2 = 25 X + Y = 25 * 2 X + Y = 50 (eqn 1)
The average age of the family consisting of husband, wife and a child now is 20 years
Age of father after 4 years is then X + 4 Age of mother after 4 years is then Y + 4 Let age of child now be Z
So, ((X + 4) + (Y+4) + Z) ÷ 3 = 20 X + 4 + Y + 4 + Z = 20 * 3 X + Y + Z + 8 = 60 X + Y + Z = 60 - 8 X + Y + Z = 52 (eqn 2)
putting (eqn 1) into (eqn 2) 50 + Z = 52 Z = 52 - 50 Z = 2
The average age of a couple married four years ago was 25 years then. The average age of the family consisting of husband, wife and a child now is 20 years. What is the child’s present age?
Let the age of father 4 years ago be X Let the age of mother 4 years ago be Y
The average age of a couple married four years ago was 25 years then.
So, (x + Y) ÷ 2 = 25 X + Y = 25 * 2 X + Y = 50 (eqn 1)
The average age of the family consisting of husband, wife and a child now is 20 years
Age of father after 4 years is then X + 4 Age of mother after 4 years is then Y + 4 Let age of child now be Z
So, ((X + 4) + (Y+4) + Z) ÷ 3 = 20 X + 4 + Y + 4 + Z = 20 * 3 X + Y + Z + 8 = 60 X + Y + Z = 60 - 8 X + Y + Z = 52 (eqn 2)
putting (eqn 1) into (eqn 2) 50 + Z = 52 Z = 52 - 50 Z = 2
Answer: 2 years
BY Riddles Repository - Answers
Warning: Undefined variable $i in /var/www/tg-me/post.php on line 283
Spiking bond yields driving sharp losses in tech stocks
A spike in interest rates since the start of the year has accelerated a rotation out of high-growth technology stocks and into value stocks poised to benefit from a reopening of the economy. The Nasdaq has fallen more than 10% over the past month as the Dow has soared to record highs, with a spike in the 10-year US Treasury yield acting as the main catalyst. It recently surged to a cycle high of more than 1.60% after starting the year below 1%. But according to Jim Paulsen, the Leuthold Group's chief investment strategist, rising interest rates do not represent a long-term threat to the stock market. Paulsen expects the 10-year yield to cross 2% by the end of the year.
A spike in interest rates and its impact on the stock market depends on the economic backdrop, according to Paulsen. Rising interest rates amid a strengthening economy "may prove no challenge at all for stocks," Paulsen said.
Telegram has exploded as a hub for cybercriminals looking to buy, sell and share stolen data and hacking tools, new research shows, as the messaging app emerges as an alternative to the dark web.An investigation by cyber intelligence group Cyberint, together with the Financial Times, found a ballooning network of hackers sharing data leaks on the popular messaging platform, sometimes in channels with tens of thousands of subscribers, lured by its ease of use and light-touch moderation.Riddles Repository Answers from kr
