Gmat_mission wrote:
In the multiplication above, # represents a single digit. What digit does # represent?
A. 2
B. 3
C. 4
D. 5
E. 6
We're told that # times 512 equals two thousand and something.
Well, 4 times 512 = two thousand and something.
And 5 times 512 = two thousand and something.
No other digits, when multiplied by 512 will give us two thousand and something
So, let's test 4 and 5 (answer choices C and D)
If # = 4, we get: (4)(510) = 2040 (doesn't meet the condition that the product is 2##0. ELIMINATE C
f # = 5, we get: (5)(510) = 2550.
Perfect! This meets the condition that the product is 2##0.
Answer: D
Cheers,
Brent
