1.

What per cent of 10 kg 250 g?A. 25%B. 5%C. 10%D. 2.5%

Answer»

10 kg = 10 × 1000 = 10000 g 

Let Z% of 1000 is 250 

∴ Z/100 × 10000 = 250 

⇒ 100 Z = 250 

⇒ Z = 250/100 

⇒ Z = 2.5%



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