Nine men went to a restaurant. Eight of them spent $6 each for their meals and the ninth man spent $4 more than the average expenditure of all nine men. What is the average expenditure?
Average simply is the sum of a set of data divided by the quantity of the data.
We know what 8 men spent which is $6 each Let what the ninth man spent be = Y Let the average of what the nine men spent be = Z
the ninth man spent $4 more than the average expenditure of all nine men
So, Y = Z + 4 (eqn 1)
average of what all nine men spent will then be ((6 x 8) + Y) ÷ 9 = Z (48 + Y) ÷ 9 = Z
Multiply all through by 9 48 + Y = 9Z (eqn 2)
Put eqn 1 into eqn 2 48 + Z + 4 = 9Z 52 + Z = 9Z 52 = 9Z - Z 52 = 8Z Z = 52 ÷ 8 Z = 6.5
Nine men went to a restaurant. Eight of them spent $6 each for their meals and the ninth man spent $4 more than the average expenditure of all nine men. What is the average expenditure?
Average simply is the sum of a set of data divided by the quantity of the data.
We know what 8 men spent which is $6 each Let what the ninth man spent be = Y Let the average of what the nine men spent be = Z
the ninth man spent $4 more than the average expenditure of all nine men
So, Y = Z + 4 (eqn 1)
average of what all nine men spent will then be ((6 x 8) + Y) ÷ 9 = Z (48 + Y) ÷ 9 = Z
Multiply all through by 9 48 + Y = 9Z (eqn 2)
Put eqn 1 into eqn 2 48 + Z + 4 = 9Z 52 + Z = 9Z 52 = 9Z - Z 52 = 8Z Z = 52 ÷ 8 Z = 6.5
So, average of the expenditure is $6.5
Answer: $6.5
BY Riddles Repository - Answers
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I have no inside knowledge of a potential stock listing of the popular anti-Whatsapp messaging app, Telegram. But I know this much, judging by most people I talk to, especially crypto investors, if Telegram ever went public, people would gobble it up. I know I would. I’m waiting for it. So is Sergei Sergienko, who claims he owns $800,000 of Telegram’s pre-initial coin offering (ICO) tokens. “If Telegram does a SPAC IPO, there would be demand for this issue. It would probably outstrip the interest we saw during the ICO. Why? Because as of right now Telegram looks like a liberal application that can accept anyone - right after WhatsApp and others have turn on the censorship,” he says.
What is Telegram Possible Future Strategies?
Cryptoassets enthusiasts use this application for their trade activities, and they may make donations for this cause.If somehow Telegram do run out of money to sustain themselves they will probably introduce some features that will not hinder the rudimentary principle of Telegram but provide users with enhanced and enriched experience. This could be similar to features where characters can be customized in a game which directly do not affect the in-game strategies but add to the experience.
