What is the value of positive number a?

Question

(1) 2a = a^2
(2) a + 2 = 2a

rohit8865 · Answer

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

rever08 · Answer

Since a is positive, from statement 1 value is 2. 
We discard the value 0 for a.

Jagwant01 · Answer

Since 0 is considered as neither negative nor positive shouldn't we also consider a=0?

Bunuel · Answer

Notice that the stem says that  a  is a positive number: What is the value of  positive number   a ?

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