Can someone explain me what this question is asking for?
If 500 is the multiple of 100 that is closet to x and 400 is the multiple that is closet to y, which multiples of 100 is closet to x+y?
1) x2) y
The question does not tell us if the multiple of 100 is greater than or lesser than or equal to x+y. So, if you consider extreme conditions, the multiples can be 700, 800 and 900. Hence, E.
What is the OA?
1. If x, y, and n are positive integers, is (x/y)^n greater than 1,000 ?
(1) x= y^3 and n > y.
(2) x > 5y and n > x.
(1) x= y^3 and n > y.
(2) x > 5y and n > x.
1. If x, y, and n are positive integers, is (x/y)^n greater than 1,000 ?
(1) x= y^3 and n > y.
(2) x > 5y and n > x.
Answer is B.
What is the OA?
Quote:
Originally Posted by kapur.arnav View Post
1. If x, y, and n are positive integers, is (x/y)^n greater than 1,000 ?
(1) x= y^3 and n > y.
(2) x > 5y and n > x.
Even I feel the answer should be B 
500 is the multiple of 100 that is closest to x so 451400 is the multiple of 100 that is closest to y so 351
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Option 1 says
x
Combining these two , 802
so the nearest multiple of x+y are 800 or 900
You cant answer the question with this !!
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Option 2 says
y
Combining these two , 802
so the nearest multiple of x+y are 800 or 900
You cant answer the question with this !!
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Combining 1 and 2
so 451combining these two we get , 802
so the nearest multiple of x+y are 800 or 900
You cant answer the question combining these two
so OA : E
am i right :confused:
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Yeah.. you are right... Prep says (E). I was considering only 900 as x+y is greater than 802...
My mistake..
thanks for the explanation...
1. If x, y, and n are positive integers, is (x/y)^n greater than 1,000 ?
(1) x= y^3 and n > y.
(2) x > 5y and n > x.
Taking 1, (x/y)^n=y^2n. n can be anything ranging from 2 . so cannot say.
Taking 2, even if we take the minmum value of 1 for y x shud have a min value of 6 and n shud have a min value of 7. the expresson becomes 6^7 which is greater th 1000.
so the anshwer is B.
1. If x, y, and n are positive integers, is (x/y)^n greater than 1,000 ?
(1) x= y^3 and n > y.
(2) x > 5y and n > x.
OA :B...
(x/y)^n > 1000
Option 1: y^2n > 1000
cant say 😐
Option 2: x > 5y and n > x
x/y >5
so , (x/y)^n = 5^n
min of y =1
min of x =6
min of n = 7
so ,min (x/y)^n = 6^7
we can solve from this !!
(1) x= y^3 and n > y.
(2) x > 5y and n > x.
OA :B...
(x/y)^n > 1000
Option 1: y^2n > 1000
cant say 😐
Option 2: x > 5y and n > x
x/y >5
so , (x/y)^n = 5^n
min of y =1
min of x =6
min of n = 7
so ,min (x/y)^n = 6^7
we can solve from this !!
1. If x and y are positive, is the ratio of x to y greater than 3 ?
(1) x is 2 more than 3 times y.
(2) The ratio of 2x to 3y is greater than 2.
(1) x is 2 more than 3 times y.
(2) The ratio of 2x to 3y is greater than 2.
Ans: D
Statement1: x=2+3y...dividing both sides by y (a non-zero number)
=> (x/y)=(2/y)+3
since y is positive, 2/y >0 therefore x/y > 3. Hence sufficient
Statement2: (2x/3y)>2
=> x/y > 3. Hence sufficient.
1. If x and y are positive, is the ratio of x to y greater than 3 ?
(1) x is 2 more than 3 times y.
(2) The ratio of 2x to 3y is greater than 2.
1. If x and y are positive, is the ratio of x to y greater than 3 ?
(1) x is 2 more than 3 times y.
(2) The ratio of 2x to 3y is greater than 2.
option 1: x = 3y + 2 x/y = 3 + 2/y ---> x/y >3
option 2: 2x/3y >2 ---> x/y >3
OA : D
OA = D
1: x=3y+2 x has to be greater than 3y.
2: 2x/3y > 2 divide both side by 2 --> x/3y > 1--> x>3y
1. At a certain picnic, each of the guests was served either a single scoop or a double scoop of ice cream. How many of the guests were served a double scoop of ice cream?
(1) At the picnic, 60 percent of the guests were served a double scoop of ice cream.
(2) A total of 120 scoops of ice cream were served to all the guests at the picnic.
(1) At the picnic, 60 percent of the guests were served a double scoop of ice cream.
(2) A total of 120 scoops of ice cream were served to all the guests at the picnic.
1. At a certain picnic, each of the guests was served either a single scoop or a double scoop of ice cream. How many of the guests were served a double scoop of ice cream?
(1) At the picnic, 60 percent of the guests were served a double scoop of ice cream.
(2) A total of 120 scoops of ice cream were served to all the guests at the picnic.
Is it C. From Statement 2 total number of scoops is known and from 1 percentage of double scoop served is known.
1. At a certain picnic, each of the guests was served either a single scoop or a double scoop of ice cream. How many of the guests were served a double scoop of ice cream?
(1) At the picnic, 60 percent of the guests were served a double scoop of ice cream.
(2) A total of 120 scoops of ice cream were served to all the guests at the picnic.
Option 1:
let total number be 100x , then 60x are served Double scoop and 40x are served single scoop
so total number of sccops would be 40x +60*2*X --> 160x
Option 2:
cnt say :D
but we can get value of x from 1 and 2 joined
160x = 120
x = 3/4
Total number is 75
Double scoop = 60x = 60*3/4 = 45
Single Scoop = 40x = 40*3/4 = 30
So option C
cnt say !!
1. If x and y are positive, what's the value of x ?
(1) x = 3.927y
(2) y = 2.279
in 1) should i take for granted that x = 3.927y implies x = 3.927*y
(1) x = 3.927y
(2) y = 2.279
in 1) should i take for granted that x = 3.927y implies x = 3.927*y
1. If x and y are positive, whats the value of x ?
(1) x = 3.927y
(2) y = 2.279
in 1) should i take for granted that x = 3.927y implies x = 3.927*y
yes that should be the case, and C is the answer !!
1. If x and y are positive, whats the value of x ?
(1) x = 3.927y
(2) y = 2.279
in 1) should i take for granted that x = 3.927y implies x = 3.927*y
even if you do not consider x as mentioned above, the answer has got to be C.
I will go with option C for the above Q
1. At a certain picnic, each of the guests was served either a single scoop or a double scoop of ice cream. How many of the guests were served a double scoop of ice cream?
(1) At the picnic, 60 percent of the guests were served a double scoop of ice cream.
(2) A total of 120 scoops of ice cream were served to all the guests at the picnic.
Answer : Option C....
1. If x and y are positive, what's the value of x ?
(1) x = 3.927y
(2) y = 2.279
Ans- Both the statement are neccessary to get the value of x.
1. At a certain picnic, each of the guests was served either a single scoop or a double scoop of ice cream. How many of the guests were served a double scoop of ice cream?
(1) At the picnic, 60 percent of the guests were served a double scoop of ice cream.
(2) A total of 120 scoops of ice cream were served to all the guests at the picnic.
Ans- Again both the statement are required
(1) x = 3.927y
(2) y = 2.279
Ans- Both the statement are neccessary to get the value of x.
1. At a certain picnic, each of the guests was served either a single scoop or a double scoop of ice cream. How many of the guests were served a double scoop of ice cream?
(1) At the picnic, 60 percent of the guests were served a double scoop of ice cream.
(2) A total of 120 scoops of ice cream were served to all the guests at the picnic.
Ans- Again both the statement are required