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
Telegram hopes to raise $1bn with a convertible bond private placement
The super secure UAE-based Telegram messenger service, developed by Russian-born software icon Pavel Durov, is looking to raise $1bn through a bond placement to a limited number of investors from Russia, Europe, Asia and the Middle East, the Kommersant daily reported citing unnamed sources on February 18, 2021.The issue reportedly comprises exchange bonds that could be converted into equity in the messaging service that is currently 100% owned by Durov and his brother Nikolai.Kommersant reports that the price of the conversion would be at a 10% discount to a potential IPO should it happen within five years.The minimum bond placement is said to be set at $50mn, but could be lowered to $10mn. Five-year bonds could carry an annual coupon of 7-8%.
Dump Scam in Leaked Telegram Chat
A leaked Telegram discussion by 50 so-called crypto influencers has exposed the extraordinary steps they take in order to profit on the back off unsuspecting defi investors. According to a leaked screenshot of the chat, an elaborate plan to defraud defi investors using the worthless “$Few” tokens had been hatched. $Few tokens would be airdropped to some of the influencers who in turn promoted these to unsuspecting followers on Twitter.
