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| Author: | Bunuel [ 08 Dec 2016, 12:58 ] |
| Post subject: | What is the value of positive number a? |
What is the value of positive number a? (1) 2a = a^2 (2) a + 2 = 2a |
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| Author: | rohit8865 [ 08 Dec 2016, 19:11 ] |
| Post subject: | Re: What is the value of positive number a? |
Bunuel wrote: What is the value of positive number a? (1) 2a = a^2 (2) a + 2 = 2a since a is positive number a>0 we can cancel a in both cases (1) 2a=a^2 a=2...suff (2) a + 2 = 2a a=2----suff Ans D |
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| Author: | rever08 [ 21 Sep 2017, 18:35 ] |
| Post subject: | Re: What is the value of positive number a? |
Since a is positive, from statement 1 value is 2. We discard the value 0 for a. |
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| Author: | Jagwant01 [ 24 Sep 2017, 23:40 ] |
| Post subject: | What is the value of positive number a? |
Bunuel wrote: What is the value of positive number a? (1) 2a = a^2 (2) a + 2 = 2a Since 0 is considered as neither negative nor positive shouldn't we also consider a=0? |
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| Author: | Bunuel [ 24 Sep 2017, 23:42 ] |
| Post subject: | Re: What is the value of positive number a? |
Jagwant01 wrote: Bunuel wrote: What is the value of positive number a? (1) 2a = a^2 (2) a + 2 = 2a Since 0 is considered as neither negative nor positive shouldn't we also consider a=0? Notice that the stem says that a is a positive number: What is the value of positive number a? |
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