Question

What is the least number amongst (0.5)2, √0.49 , 0.28?

Answer 1

$i) (0.5)^{2} = 0.5 \times 0.5 = 0.25 \: --(1)$

$ii) \sqrt{0.49} = \sqrt{0.7 \times 0.7} = 0.7 \: --(2)$

$iii) 0.28 \: --(3)$

\* We know that *\

$0.25 \lt 0.28 \lt 0.7$

$\therefore \green { (0.5)^{2} \lt } 0.28 \lt \sqrt{0.49}$

Therefore.,

$\red{ Required \: least \:number } \green { = (0.5)^{2} }$

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