Blog: Archive for the “Uncategorized” Category

Each week Manhattan GMAT posts a GMAT question on our blog and follows up with the answer the next day. Are you up for the challenge? “The Square of X Minus 2” Is (x – 2)2 > x2? (1) x2 > x (2) 1/x > 0

Yesterday, Manhattan GMAT posted a GMAT question on our blog.  Today, they have followed up with the answer: The amount of interest, in dollars, that Samantha will receive in one year is equal to the interest rate multiplied by the principal. For bond X, this product is equal to (r1/100) × i1. Likewise, for bond … Read More  

Each week Manhattan GMAT posts a GMAT question on our blog and follows up with the answer the next day. Are you up for the challenge? Samantha invests i1 dollars in bond X, which pays r1 percent simple interest annually, and she invests i2 dollars in bond Y, which pays r2 percent simple interest annually. … Read More  

Yesterday, Manhattan GMAT posted a GMAT question on our blog.  Today, they have followed up with the answer: The brute-force approach would be to systematically list multiples of 450 from 450 on up, test each one to see whether it is a perfect cube (the cube of a positive integer), and choose the first multiple … Read More  

Each week Manhattan GMAT posts a GMAT question on our blog and follows up with the answer the next day. Are you up for the challenge? What is the smallest positive integer x such that 450x is the cube of a positive integer? A) 2 B) 15 C) 30 D) 60 E) 120