Every month Victor saves money. In a certain year, he increases the

Question

Every month Victor saves money. In a certain year, he increases the savings by 30% in March than the savings in February. What is the percent change in his savings from January to March?

(1) The percent change in the amount Victor saves from January to February is 10%.

(2) The absolute difference between his savings in January and March is $430

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ajaynandakumar7 · Answer

Assume that his Savings in Jan be X. In Feb his savings would be 1.1X. Given that he increases his savings by 30% his march savings will be 1.43x. As per statement 1 alone we shall be able to get the percent change. So A alone is sufficient. And statement 2 alone is alone sufficient too. So option D will be the correct answer I guess.

Oppenheimer1945 · Answer

we don't know the direction (+ or -). Should be E

ravitejab1 · Answer

He is increasing savings contribution for March by 30% . This doesn’t mean he increased overall savings amount by 30% hence you can not apply 30% increment on 1.1X. 
We have no information about monthly contribution in Feb so we can’t say monthly contribution of March so given information is not sufficient.

AzmanTwT · Answer

Should be A

(i) Let his savings in January be 100. Therefore, 110 in February and 143 in March. 143% of what he saved in January or 43% change. SUFFICIENT

(ii) Insufficient

djangobackend · Answer

A - "The percent change in the amount Victor saves from January to February is 10%." - this could mean 10 percent increase of decrease so not sufficient

B - The absolute difference between his savings in January and March is $430 - clearly not suff.

together, say Jan = 100a, then Feb can be 90a or 110a and then march can be 1.3(110a) or 1.3(90a) in both cases the values of percent change WRT jan will differ hence not sufficient together. Answer - E

Every month Victor saves money. In a certain year, he increases the

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GMAT Data Sufficiency (DS) Questions

Every month Victor saves money. In a certain year, he increases the

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