If √0.05 × 0.5 × a = 0.5 × 0.05

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√0.05 × 0.5 × a
= 0.5 × 0.05 × √b
On squaring both sides,
0.05 × 0.5 × a = 0.5 × 0.5 × 0.05 × 0.05 × b
⇒ a = 0.5 × 0.05b

⇒	a	= 0.5 × 0.05 = 0.025
	b