GMAT Quantitative Reasoning Practice Test 5

Question : 2 of 100

Marks: +1, -0

Arnold and Danny are two twin brothers that are celebrating their birthday. The product of their ages today is smaller by 9 from the product of their ages a year from today. What is their age today?

Validate

Solution:

Back solve using the answers. Take the age 4 .

\;4 × 4=16

\;16+9=25 .

And in one year they'll be 5 so

5 × 5=25

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