Division using the Chinese remainder theorem

In this post, we will look at Chinese remainder theorem. Let’s take a small example to begin with. Say we have to find the remainder of 1003 divided by 99. Now, we can easily divide 1003 by 99 and get the remainder to be 13. However, let’s see if we can...

19 days to CAT 2015 | Mixed Progressions

In this article, we will be looking at mixed progressions. Before watching these videos, go through our article on Arithmetic Progression and Geometric Progression. Part 1 Part 2 You can read the entire 75 days to CAT 2015 by clicking here. Happy learning!...

20 days to CAT 2015 | Quick quant

We are back with another set of CAT questions. Try to solve this set in five minutes. Q.1 Consider four-digit numbers for which the first two digits are equal and the last two digits are also equal. How many such numbers are perfect squares? (CAT 2007) (1) 3 (2) 2 (3)...
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