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7 years, 9 months ago
Dear Sir/Ma'am ,
I had subscribed to the verbal ability study room and have been practising them religiously. But in terms of RC, my concern is that since most of your question's are based on inferences from the paragraph rather than structural based questions like theme, agree, disagree, continuing paragraph and other type of questions as seen in the previous cat papers, I fear that I might be practising just on reading rather than getting any CRITICAL thinking required for the RC. Is this the norm or should I focus on previous cat pattern.
Please suggest
Dhanush
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How do we determine the minimum value in solutions of maxima and minima ( like k, l, m and n are the percentage of people who take only one paper, exactly 2 papers, exactly 3 papers and all four papers respectively. k+l+m+n=100 - (1) k+2l+3m+4n=330 - (2) Subtracting 3 times equation 1 from 2, we get n = 30 + 2k + l So, the least value of n occurs when k and l are 0 and the least value is 30%.)
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How was 40+18+40+18 arrived at ?
Here is the question:
Neeraj has agreed to mow a lawn, which is a 20 m × 40 m rectangle. He mows it with 1 m wide strip. If Neeraj starts at one corner and mows around the lawn toward the centre, about how many times would he go round before he has mowed half the lawn? (Round off the answer to two decimal digits)
CrackU Solution:
To mow half of lawn is to mow 400 squares of 1m width each. Neeraj mows 40+18+40+18 = 116 squares of 1m width each in 1st round, in 2nd round he mows 38+16+38+16 = 108 squares and in 3rd round, he mows 36+14+36+14 = 100 squares. So, in total, he mows 324 squares; but he needs 400-324 = 76 more.
If he covers the 4th round completely, he mows 92 squares, to cover only 76, he needs to cover 76/92 = 0.826 round.
So in total 3.826 ≈">≈≈ 3.83 rounds are required.
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