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could someone please solve this without putting any strategic numbers

For I, 2+2k>2+k => k>0, which is true since k is +ve number. For II, 2-2m>2-m => m 1/2 and m expression is m expression is true. So I and III are true IMO

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The question is discussed here - which-of-the-following-must-be-correct-425773.html

can anyone solve this using estimation or show the most efficient method? i know we can write it as 11/159 and then convert all the options. Is there a faster way

not sure if its efficient but i’d take 11/159.. then when I check options they have 1 as numerator.. so i’ll use inequality property where a/d > b/c if ad>bc.. so 11*16 =176 > 159*1 = 159..so 11/159 greater than 1/16 (take note of how close the diff is..17) and compare 11/159 with 1/15 using similar method..so 165 > 159..but now diff is only 6..so its closer. sorry.. a/b > c/d if ad>bc.. my gosh

can this be solved faster only by converting the decimals into fractions? and in case we dont recall the exact fraction, is there any alternative approach?

You can do this by rounding off decimals to not one but two places and then simply cutting them off and you’ll get 1/2 (option A) as final answer.

Could you show any 1 value from the equation as an example’ to round off upto two places?

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