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PriyankaPalit7
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Symbol * denote to be one of the operations add, subtract, multiply, o 24 May 2019, 12:39
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58% (01:23) correct 42% (01:23) wrong based on 294 sessions

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Symbol * denotes one of the operations: add, subtract, multiply, or divide.
Is \((6*2)*4=6*(2*4)\)?

1) \(3*2>3\)
2) \(3*1=3\)
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A
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Symbol * denote to be one of the operations add, subtract, multiply, o 24 May 2019, 14:04
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This question is basically asking wether * is associative and we know only addition/mulplication is true
(6+2)+4= 6+(2+4)
(6•2)•4= 6•(2•4)
(Stat.1) 3*2 >3 true only when * is adding or multiplying —> 3+2 > 3 or 3•2 > 3. (suff.)
(Stat.2) 3*1=3 true only when * is multiplying or dividing (not associative) (not suff)
Answer is A

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Symbol * denote to be one of the operations add, subtract, multiply, o 25 May 2019, 11:33
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(6∗2)∗4=6∗(2∗4) holds true only if * denotes add or multiply

1) 3∗2>3
* can be Add or multiply
* can NOT be subtract or divide
we have only one answers for question "Is (6∗2)∗4=6∗(2∗4)(6∗2)∗4=6∗(2∗4)? "
Yes if * denotes multiply
Yes if * denotes add
SUFFICIENT

2) 3∗1=3
* can be multiply or divide
we have two different answers for question "Is (6∗2)∗4=6∗(2∗4)(6∗2)∗4=6∗(2∗4)? "
Yes if * denotes multiply
No if * denotes divide
NOT SUFFICIENT
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Symbol * denote to be one of the operations add, subtract, multiply, o 14 Mar 2020, 10:37
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But doesn't the question asks the symbol to be one of the operations? Going by that answer should be c

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Symbol * denote to be one of the operations add, subtract, multiply, o 10 Feb 2021, 00:12
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VeritasKarishma plz solve this question
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Symbol * denote to be one of the operations add, subtract, multiply, o 11 Feb 2021, 03:17
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PriyankaPalit7
Symbol * denotes one of the operations: add, subtract, multiply, or divide.
Is \((6*2)*4=6*(2*4)\)?

1) \(3*2>3\)
2) \(3*1=3\)


Is \((6*2)*4=6*(2*4)\)?

If the symbol is 'add' or 'multiply', the brackets become irrelevant. The two sides will be equal.
But if it is subtract or divide, the brackets play a role in deciding what the final answer will be.

So the question boils down to "Does the symbol denote add/multiply?"

1) \(3*2>3\)

If the symbol were subtract or divide,
3 - 2 < 3
and 3/2 < 3

So the symbol MUST be add or multiply. Then the answer is yes. Sufficient.

2) \(3*1=3\)

Here, the symbol could be multiply or divide because in both cases it holds.
3 * 1 = 3
3/1 = 3

Then can we say whether the symbol is add/multiply? No. It may be multiply or it may be divide. Not sufficient.

Answer (A)
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Symbol * denote to be one of the operations add, subtract, multiply, o 10 May 2021, 12:29
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VeritasKarishma
PriyankaPalit7
Symbol * denotes one of the operations: add, subtract, multiply, or divide.
Is \((6*2)*4=6*(2*4)\)?

1) \(3*2>3\)
2) \(3*1=3\)


Is \((6*2)*4=6*(2*4)\)?

If the symbol is 'add' or 'multiply', the brackets become irrelevant. The two sides will be equal.
But if it is subtract or divide, the brackets play a role in deciding what the final answer will be.

So the question boils down to "Does the symbol denote add/multiply?"

1) \(3*2>3\)

If the symbol were subtract or divide,
3 - 2 < 3
and 3/2 < 3

So the symbol MUST be add or multiply. Then the answer is yes. Sufficient.

2) \(3*1=3\)

Here, the symbol could be multiply or divide because in both cases it holds.
3 * 1 = 3
3/1 = 3

Then can we say whether the symbol is add/multiply? No. It may be multiply or it may be divide. Not sufficient.

Answer (A)

Can you help me understand in this way it will have two options for the symbol? but dnt we need one as the ques says symbol * denote to be one of the operations, add, subtract, multiply or divide?
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Symbol * denote to be one of the operations add, subtract, multiply, o 26 Sep 2021, 00:56
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ManyataM
VeritasKarishma
PriyankaPalit7
Symbol * denotes one of the operations: add, subtract, multiply, or divide.
Is \((6*2)*4=6*(2*4)\)?

1) \(3*2>3\)
2) \(3*1=3\)


Is \((6*2)*4=6*(2*4)\)?

If the symbol is 'add' or 'multiply', the brackets become irrelevant. The two sides will be equal.
But if it is subtract or divide, the brackets play a role in deciding what the final answer will be.

So the question boils down to "Does the symbol denote add/multiply?"

1) \(3*2>3\)

If the symbol were subtract or divide,
3 - 2 < 3
and 3/2 < 3

So the symbol MUST be add or multiply. Then the answer is yes. Sufficient.

2) \(3*1=3\)

Here, the symbol could be multiply or divide because in both cases it holds.
3 * 1 = 3
3/1 = 3

Then can we say whether the symbol is add/multiply? No. It may be multiply or it may be divide. Not sufficient.

Answer (A)

Can you help me understand in this way it will have two options for the symbol? but dnt we need one as the ques says symbol * denote to be one of the operations, add, subtract, multiply or divide?
Kshitij609 & ManyataM

It means that * stands for only 1 operation during a single instance, but can be another operation at another instance E.g. S1 tells us that * could be addition or multiplication. Now \((6 * 2) * 4 = 6 * (2 * 4)\) can be solved once by replacing * with + i.e. \((6 + 2) + 4 = 6 + (2 + 4)\) and another time by replacing * with * i.e. \((6 * 2) * 4 = 6 * (2 * 4)\), but you cannot combine them at the same time i.e. \((6 + 2) * 4 = 6 * (2 + 4)\)

So by stating Symbol * denotes one of the operations its preventing you from combining multiple operations in a single instance, but you are free to apply different operations at different instances

Hope its clear!
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Symbol * denote to be one of the operations add, subtract, multiply, o 02 Jan 2025, 05:57
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