KVPY SA Exam 2011 Question Paper

Question : 5 of 80

Marks: +1, -0

Below are four equations in x. Assume that 0 < r < 4.Which of the following equations has the largest solution for x?

Solution:

Given 0 < r < 4
in the given options

(\Base)^x = 9/5

for largest value of x, base should be minimum.
∴ in option B base

(1+r/17)

is minimum for 0 < r < 4.

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