TS ICET 1 Oct 2020 Shift 1 Paper

Question : 121 of 200

Marks: +1, -0

A man walking away from the foot of a cliff 150 meters high observes that it takes 2 minutes to change the angle of elevation of the top of the cliff from

60°

45°

. His walking speed in

{kmph}

${9+3 \√{3}}/{2}$
${9-3 \√{3}}/{2}$
${3(1+3 \√{3})}/{2}$
${3(\√{3}-1)}/{2}$

Validate

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