I was just practising old questions of my exam and I found this one . Thought it would be easy but I just do not get the right answer which is 7 cocktails. Thanks in advance .

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter Mark222
- Start date

I was just practising old questions of my exam and I found this one . Thought it would be easy but I just do not get the right answer which is 7 cocktails. Thanks in advance .

- Joined
- Oct 6, 2005

- Messages
- 10,886

[imath]\;[/imath]

- Joined
- Dec 30, 2014

- Messages
- 13,544

Are you sure that line is correct?Sasha drank twice as much beer as Max, butshedrank three times as much juice than Sasha.

- Joined
- Mar 16, 2016

- Messages
- 3,589

Maxine?Are you sure that line is correct?

yes Maxine drank three times as much juice as sashaAre you sure that line is correct?

I tried to do with two equations

[imath]\;[/imath]

B for beer , J for juice , C for cocktails.

For sasha ,x1 B+ x2J + x3 C= 10 x 500

For maxine ,y1B + y2 J + y3 C= 10 x 625

Then ,

Sasha drank twice beer as maxine

2y1B + x2 J + x3 S = 5000

for max three time as much as juice as sasha

y1B + 3x2 J + y3 S = 6250

then I am stuck. Thanks for your replies

yesMaxine?

- Joined
- Dec 30, 2014

- Messages
- 13,544

Can you please define allI tried to do with two equations

B for beer , J for juice , C for cocktails.

For sasha ,x1 B+ x2J + x3 C= 10 x 500

For maxine ,y1B + y2 J + y3 C= 10 x 625

Then ,

Sasha drank twice beer as maxine

2y1B + x2 J + x3 S = 5000

for max three time as much as juice as sasha

y1B + 3x2 J + y3 S = 6250

then I am stuck. Thanks for your replies

- Joined
- Dec 30, 2014

- Messages
- 13,544

SB = number of beer Sasha drank

SJ = number of juice Sasha drank.

SC = number of cocktails Sasha drank.

MB = number of beer Max drank

MJ = number of juice Max drank.

MC = number of cocktails Max drank.

They each drank 10 drinks during the evening:

1)SB + SJ + SC = 10

2)MB + MJ + MC =10

Sasha drank twice as much beer as Max:

3)SB = 2MB

Max drank three times as much juice than Sasha:

4)MJ = 3SJ

Sasha spent CZK 500:

5)25SB + 50SJ + 100SC = 500

Max spent CZK 625:

6)25MB + 50MJ + 100MC = 625

6 equation with 6 unknowns might be solvable

Find SC + MC