In the table above, Is Z=20q ? : GMAT Data Sufficiency (DS)
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# In the table above, Is Z=20q ?

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In the table above, Is Z=20q ? [#permalink]

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09 Dec 2007, 19:05
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Q. In the table above, Is Z=20q ?
(1) q=3.
(2) Each value other than q is equal to the sum of the value immediately above it in the table and the value immediately to the left in the table.

Q. Tim bought 2 kinds of candy bars, choco and vanilla, that came in package of 2 bars each. Tim handed out 2/3 of choco and 3/5 of vanilla. How many packages did Tim bought?
(1) Tim bought 1 fewer package of choco than vanilla,
(2) Tim handed out the same no. of each kind of candy bar.

The first question is discussed here: in-the-table-above-is-z-20q-104122.html#p811519
The second question is discussed here: rasheed-bought-two-kinds-of-candy-bars-chocolate-and-toffee-129470.html

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09 Dec 2007, 19:20
for the first question i got b. what was the ans?
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09 Dec 2007, 20:14
I got:
B for the 1st Q,
C for the second Q
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Re: Questions 2 from paractice test GMATPREP. [#permalink]

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07 Jun 2008, 15:26
ravi_taneja_1977 wrote:
Q. In the table above, Is Z=20q ?
(1) q=3.
(2) Each value other than q is equal to the sum of the value immediately above it in the table and the value immediately to the left in the table.

Can someone please solve the first question above.
Thanks!
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Re: Questions 2 from paractice test GMATPREP. [#permalink]

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13 Dec 2010, 09:06
Statement 1) Insufficient. As with just 1 value and no rule given to determine the other values(how they are related or how the values are derived) we cannot answer it.

Statement 2) Sufficient:
Read the rule what it states:

By that rule ;

r=q+q= 2q
u=q+r= 3q ( as we have found the value of r already as above. Similarly follow suit for others)
x=q+u= 4q
s=q+r=3q
v=s+u=7q
y=v+x=12q
t=q+s=4q
w=q+v=8q
finally Z=w+y=20q

Hence B sufficient.
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Re: Questions 2 from paractice test GMATPREP. [#permalink]

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13 Dec 2010, 09:34
Q. Tim bought 2 kinds of candy bars, choco and vanilla, that came in package of 2 bars each. Tim handed out 2/3 of choco and 3/5 of vanilla. How many packages did Tim bought?
(1) Tim bought 1 fewer package of choco than vanilla,
(2) Tim handed out the same no. of each kind of candy bar.

2bars= 1 packet.
Let the number of packets be bought (1) Choco= x packets (2) Toffee= y packets
Tim Handed out : 2/3 * x AND 3/5 * y
We need to find what are x and y values?

St.1
1 fewer choco pack i.e choco packs x = (y-1)
No other info. Insufficient

St.2
No. of x packets = No. of y packets. (No info abt x and/or y)
Insufficient

St1 & St 2 Together:

(1) x=(y-1)
(2) handed out same number of each kind of candy bar and it is given he handed out 2/3 of choco & 3/3 of vanilla.
Therefore 2/3 x = 3/5y
2/3 (y-1) =3/5y
Solving we get y=10 (packets) & x =y-1=9 packets.

Hence sufficient.
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Re: Q. In the table above, Is Z=20q ? (1) q=3. (2) Each value [#permalink]

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14 Mar 2013, 04:40
How do you solve the table question?
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Re: Q. In the table above, Is Z=20q ? (1) q=3. (2) Each value [#permalink]

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14 Mar 2013, 04:53
fozzzy wrote:
How do you solve the table question?

The first question is discussed here: in-the-table-above-is-z-20q-104122.html#p811519
The second question is discussed here: rasheed-bought-two-kinds-of-candy-bars-chocolate-and-toffee-129470.html

Hope it helps.
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Re: Q. In the table above, Is Z=20q ? (1) q=3. (2) Each value   [#permalink] 14 Mar 2013, 04:53
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# In the table above, Is Z=20q ?

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