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What is the total weight of 36 coins, in grams?
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10 Apr 2020, 23:14
10 Apr 2020, 23:14
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What is the total weight of 36 coins, in grams?
1) Twenty of the coins have a total weight of 560 grams.
2) The average (arithmetic mean) weight of 8 of the coins is 30 grams.
1) Twenty of the coins have a total weight of 560 grams.
2) The average (arithmetic mean) weight of 8 of the coins is 30 grams.
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Re: What is the total weight of 36 coins, in grams?
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10 Apr 2020, 23:18
10 Apr 2020, 23:18
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CAMANISHPARMAR
What is the total weight of 36 coins, in grams?
1) Twenty of the coins have a total weight of 560 grams.
2) The average (arithmetic mean) weight of 8 of the coins is 30 grams.
1) Twenty of the coins have a total weight of 560 grams.
2) The average (arithmetic mean) weight of 8 of the coins is 30 grams.
Question: Total weight of 36 coins = ?
Statement 1: Twenty of the coins have a total weight of 560 grams.
No information about remaining 16 coins hence
NOT SUFFICIENT
Statement 2: The average (arithmetic mean) weight of 8 of the coins is 30 grams.
No information about remaining 28 coins hence
NOT SUFFICIENT
Combining the statements
No information about all the coins hence
NOT SUFFICIENT
Answer: Option E
Re: What is the total weight of 36 coins, in grams?
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16 May 2020, 19:45
16 May 2020, 19:45
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GMATinsight
CAMANISHPARMAR
What is the total weight of 36 coins, in grams?
1) Twenty of the coins have a total weight of 560 grams.
2) The average (arithmetic mean) weight of 8 of the coins is 30 grams.
1) Twenty of the coins have a total weight of 560 grams.
2) The average (arithmetic mean) weight of 8 of the coins is 30 grams.
Question: Total weight of 36 coins = ?
Statement 1: Twenty of the coins have a total weight of 560 grams.
No information about remaining 16 coins hence
NOT SUFFICIENT
Statement 2: The average (arithmetic mean) weight of 8 of the coins is 30 grams.
No information about remaining 28 coins hence
NOT SUFFICIENT
Combining the statements
No information about all the coins hence
NOT SUFFICIENT
Answer: Option E
Does it have to be specifically mentioned in the question that each coin weighs the same, for us to consider that fact?
Because, if we assume that each coin weighs the same, both statement would alone be sufficient. No ?
