Hello, while using GRE calculator, all numerics can be input via keyboard, but while giving multiplication 'x' sign through '*' asterisk mark it is not taking, can you please tell me how can I put multiplication using keyboard?
Once we know that we can rewrite the sum as a bunch 65's, we need to determine how many 65's there are to add. We do that using the formula y-x+1. For more on this, see the following video - www.greenlighttestprep.com/module/gre-word-problems/video/930
I also had this question. One way that I tried to think about it is that there are not 42 pairs of 65's. There are only 21 (12+53=65; 13+52=65; 14+51=65; etc.). There are only 21 pairs of 65's. I had to write it down in my own words for it to make sense.
Once we know that we can rewrite the sum as a bunch 65's, we need to determine how many 65's there are to add. We do that using the formula y-x+1. For more on this, see the following video - www.greenlighttestprep.com/module/gre-word-problems/video/930 NOTE: that question is part of a very general video on math strategies. We take a closer look at the sum question in much greater detail later on in the course.
You make it look easy.
TheAngryChoob thanks!
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Hello, while using GRE calculator, all numerics can be input via keyboard, but while giving multiplication 'x' sign through '*' asterisk mark it is not taking, can you please tell me how can I put multiplication using keyboard?
at the end from where 21 comes????????????????
Once we know that we can rewrite the sum as a bunch 65's, we need to determine how many 65's there are to add. We do that using the formula y-x+1. For more on this, see the following video - www.greenlighttestprep.com/module/gre-word-problems/video/930
I also had this question. One way that I tried to think about it is that there are not 42 pairs of 65's. There are only 21 (12+53=65; 13+52=65; 14+51=65; etc.). There are only 21 pairs of 65's. I had to write it down in my own words for it to make sense.
quite useful, thanks!
Julio César EA Thanks!
I'm confused on the last problem. How do we know that there are 21 pairs that add to 65? Why is 53-12 relevant, and why does y-x+1 factor in?
Once we know that we can rewrite the sum as a bunch 65's, we need to determine how many 65's there are to add. We do that using the formula y-x+1. For more on this, see the following video - www.greenlighttestprep.com/module/gre-word-problems/video/930
NOTE: that question is part of a very general video on math strategies. We take a closer look at the sum question in much greater detail later on in the course.