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Arithmetic mean
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poonam1279
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pandeyvineet24
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Price of 1 shirt = 15
Price of 1 Sweater = 25
statement 1.
(15S + 25SW)/(S + SW) = 21
=> 15S +25SW = 21S + 21SW
=> 4SW = 6S
=> 2SW = 3S
Which tells us that there were more Sweaters than shirts.
hence Sueff
Stmt 2
(15S + 25SW) = 420
No more info. Not Sueff
Price of 1 Sweater = 25
statement 1.
(15S + 25SW)/(S + SW) = 21
=> 15S +25SW = 21S + 21SW
=> 4SW = 6S
=> 2SW = 3S
Which tells us that there were more Sweaters than shirts.
hence Sueff
Stmt 2
(15S + 25SW) = 420
No more info. Not Sueff
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ronniecoleman
- Legendary Member
- Posts: 546
- Joined: Sun Nov 16, 2008 11:00 pm
- Location: New Delhi , India
- Thanked: 13 times
During a sale, a clothing store sold each shirt at a price of $15 and each sweater at a price of $25. Did the store sell more sweaters than shirts during the sale?
(1) The average (arithmetic mean) of the prices of all the shirts and sweaters that the store sold during the sale was $21.
(2) The total of the prices of all the shirts and sweaters that the store sold during the sale was $420
let x shirts are sold
y sweater are sold
so .
15 x + 25 y / ( x+ y) = 21
2y = 3x
clearly it shows that y is greater than x
choose A
(1) The average (arithmetic mean) of the prices of all the shirts and sweaters that the store sold during the sale was $21.
(2) The total of the prices of all the shirts and sweaters that the store sold during the sale was $420
let x shirts are sold
y sweater are sold
so .
15 x + 25 y / ( x+ y) = 21
2y = 3x
clearly it shows that y is greater than x
choose A
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