bidishabarpujari wrote:

3. x, y z are integers greater than 1, what is the value of x+y+z?

i) xyz=70

ii) x/yz=7/10

I am bit confused about the answers. please help me with the methods.

3. will go with A

i. xyz= 70 and all are >1 so only values satisfying this is 2*5*7 so we can find the value. hence suff

ii. x/yz = 7/10 ==> 10x = 7 yz => we can have a lot of possibilities here.

e.g.

x = 7 and y and z = 2 and 5

x= 70 and y and z can be (5,20) (10,10)

hence insuff