In June 1989, what was the ratio of the number of sales

C.
Xj = June Sales for X
Yj = June Sales for Y
Xm = May Sales for X
Ym = May Sales for Y
Looking for Xj / Yj

(1) Xj = 1.5*Ym
INSUFFICIENT

(2) Yj = 1.25 Ym
INSUFFICIENT

Together,
Xj / Yj = 1.5 / 1.25

E.

(1) compares transactions in June to transactions is May; insufficient;
(2) compares transactions in June to transactions in May; insufficient;

Neither (even if together) give us any ratios for sales transactions made by X to Y in the month of June.

Answer is A.

to calculate: x/y

1) given: x= 1.5y... coz x = y + (50% of y)
x/y = 1.5y/y = 3/2 Hence, sufficient.

2) insufficient. No info abt sales of X in June.

Hence answer is A.

If you look at stmt1, it gives info of two different months - of June for X and of May for Y.

That is why A cannot be sufficient and C should be the answer.

Correct I admit. I was too fast to read it properly.

In June 1989, what was the ratio of the number of
sales transactions made by Salesperson X to the
number of sales transactions made by Salesperson Y ?
(1) In June 1989, Salesperson X made 50 percent
more sales transactions than Salesperson Y did
in May 1989.
(2) In June 1989, Salesperson Y made 25 percent
more sales transactions than in May 1989.

Its taken from OG 12

ques:48 DS section - OG12

Statement 1 is not sufficient - it gives the ratio of X's sales in June to Y's sales in May. The question asks you to find the ratio of X's sales in June to Y's sales in June.

If we let m represent Y's sales in May, then from Statement 1, X made 1.5m sales in June, and from Statement 2 Y made 1.25m sales in June, so the requested ratio is 1.5 to 1.25, and the answer is C.
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Damn! my bad!! dint even notice that!! thanks Ian.

Goal is to find X/Y or X:Y

Translate the question stem.

X= # of sales by Salesperson X
Y= # of sales by Salesperson Y

for s. Plug in X = 1.50/Y (y is unknown) NOT SUFF

for s.1: plug in Y= 1.25X (x is unknown) NOT SUFF

Combined: Substitute Y for X on the first equation. SUFF. (similar to age questions)

C means that both A and B are not sufficient to answer the question right? And this is just because no information was given about what they did in June right?

Hi madzstar, this is what A B... mean


A Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked.
B Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked.
C BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient to answer the question asked.
D EACH statement ALONE is sufficient to answer the question asked.
E Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed.

Here the answer is C
In June 1989, what was the ratio of the number of sales transactions made by Salesperson X to the number of sales transactions made by Salesperson Y ?

(1) In June 1989, Salesperson X made 50 percent more sales transactions than Salesperson Y did in May 1989.
(2) In June 1989, Salesperson Y made 25 percent more sales transactions than in May 1989.

The question asks \(\frac{juX}{juY}=?\)

1)\(juX=1.5mayY\)
2)\(juY=1.25mayY\)

Taken by itself each statement is not sufficient.
Taken together \(\frac{juX}{juY}=\frac{1.5mayY}{1.25mayY}=\frac{1.5}{1.25}\)
Sufficient => C

ok. Thanks so much for that explanation

Merging similar topics.

The data sufficiency problem consists of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements, plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of the word counterclockwise), you must indicate whether—

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked.
C. BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient to answer the question asked.
D. EACH statement ALONE is sufficient to answer the question asked.
E. Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed.

Solution for this problem is here: in-june-1989-what-was-the-ratio-of-the-number-of-sales-50701.html#p758992

Hope it's clear.
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The problem becomes a bit complicated since it involves time into sales transaction.
X5, Y5 for sales transaction in May
X6, Y6 for sales transaction in June
-->So, the question is (X6/Y6)
+ST1: X6= Y5 + 0.5Y5=1.5Y5-->NS since there's no info about Y6
+ST2: Y6=0.25Y5 + Y5=1.25Y5-->NS since there's no info about X6
ST1 + ST2-->We have enough info to answer the question.--> C

Hi IanStewart
In statement 2, it seems that ''transaction'' is compared with ''year'. Shouldn't it be something like bellow?
(2) In June 1989, Salesperson Y made 25 percent more sales transactions than did in May 1989
Thanks__
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The sentence is comparing what happened *in* June with what happened *in* May. If you deleted the second "in" from the sentence, only then would it be comparing transactions with a month of the year. Your suggested edit is not correct because "did" has no subject, but it would be correct if you included the subject:

In June 1989, Salesperson Y made 25 percent more sales transactions than she did in May 1989

But the original is fine too -- we often omit words in English comparisons when the meaning is clear.
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