SAT Math Question

<p>Can someone solve this math problem, and tell/show me how to do it? It's from the Red College Board 10 Real SATs book pg. 391 (I don't know if anyone uses it anymore).</p>

<pre><code> Col. 1 Col.2
</code></pre>

<p>Row 1 _____ _____ 53
Row 2 _____ _____ 26
Row 3 _____ _____ 21
Total 36 64 100</p>

<p>In the table above, each of the six empty boxes should contain a number entry so that the column and row totals are as given. Juan wants to complete the table. What is the least number of entries he must ask for in order to complete the table?</p>

<p>The answer is 2, but I still can't figure it out.</p>

<p>Thanks in advance.</p>

<p>Juan will need to ask for 2 entries to fill up the whole table.
If he finds out the numbers present in the empty boxes of same column and different rows(For e.g. first blanks of row 1 and row 2), he cud then calculate the remaining numbers.</p>

<p>Oh I get it now. I guess I misunderstood what exactly they meant by "asking for entires". Thanks ccprofile!</p>