In Today's post, we try to look at 3 problems that have appeared in past CAT papers, and provide clues to solve them.
The complete solution will be available in our next post.
- If x = -0.5, which of the following has the smallest value?
21/x , 1/x, 1/x2, 2x, 1/√-x - Which among the following is the largest?
21/2, 31/3, 41/4, 61/6, 121/12 - How many 2 digit numbers increase by 18 when the digits are reversed?
Hints:
- A positive number raised to any real number will always be positive. For eg, 4-1/10 will be greater than 0.
- Convert all numbers to have the same exponent. Then compare the numbers.
- Let the number have digits a,b. Original number is 10a+b, reversed is 10b+a. Take the difference and try to solve it :)
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ReplyDeleteReally enjoyed this post—refreshing to see CAT basics broken down so simply. These hints actually reminded me why practicing number systems consistently matters. The reversed-digits question is a classic, but your explanation makes it feel much easier to approach. While reading, I was juggling a few tabs, including my99exch, and somehow the mental break helped me refocus. Looking forward to the next post with full solutions!
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