Question.1:
(1)square root of x >y
(2)x > y
(2)x > y
Question.2:
Material A costs $3 per kilogram, and material B costs $5 per kilogram. If 10 kilograms of material K consists of x kilograms of material A and ykilograms of material B, is x > y?
(1) y > 4
(2) The cost of the 10 kilograms of material K is less than $40.
(2) The cost of the 10 kilograms of material K is less than $40.
Answers will be posted in the blog after 12 hrs.
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Quants-Master
Posts
Qn 1. E
ReplyDelete(1) If x and y is less than 1 and root[x]>y then, cube[x] can be less than y.
If x and y is greater than 1 and root[x]>y then, cube[x] will be greater than y.
Not sufficient.
(2) Same explanation as 1. Consider the case of x and y less than 1.
e.g: x = 0.9 and y = 0.8
Qn 2. B
(1) Is y greater than x? y can be 4 where x will be 6 and y can be 6 when x will be 4. Not Sufficient.
(2) Considering y=5 and x=5, the value will be $40. But the value should be less than $40 according to the question. If y = 4 and x = 6, then the value will be $12+$30 = $42 (Not acceptable). So, consider y = 6 and x = 4, value will be $18+$20 = $38.
So answer is y > x. Solution (2) is sufficient.
Am I right?
Response to Question #1:
ReplyDeleteAns is E
1. not sufficient. different answers for fractions and integers. Try (0.5 and 3 as example)
2. not sufficient. different ans for fractions and integers Try (any number of above kind)
1&2 Together
x>y and sqrt x>y. No way to differentiate whether x is a integer or fraction as we don't know whether x greater or less than sqrt (x)
Response to Question #2:
Ans B
Statement 1 is not suff. case 5,5 and 4,6 gives diff ans.
Statement 2 says cost of 10 KG of material is less than $40. If we take X and Y as 5 the amount is $40. So the amount to be less than this $5 material should definitely be less than $3 material. Hence Sufficient
Thanks,
Quant-Master
You are perfect Hungry
ReplyDeleteThanks,
Quant-Master