Can someone please answer this with proper explanation.
At sahara shopping centre, a person can purchase as much articles at a time as his or her age that is a person of a years age can purchase only n similar articles at a time .Amisha is younger to her elder brother who has just entered into his twenties. One day Amisha went to the Sahara Shopping centre, she purchased same toffees at a particular rate on the ground floor. But when she reached on third floor she found that she could purchase double the no. of toffees with the same amount as she had spent on the ground floor. Also to purchase the same no. of toffees on the third floor she had to spend Rs. 2 less than that of on the first floor. How many toffees did she buy?
Ground X x Y = XY
Third X x 2Y = 2XY | |--> X/2 x 2Y = XY
If the X=4 then multiple of 4 must be obtain from option , which gives the no. Of toffes did she get at last. And multiple of 4 is 12.
So the answer is 12, even though data is insufficient for value Y in it.