JAMB - Mathematics (2018 - No. 35)
Express 495g as a percentage of 16.5kg
3%
3 \(\frac{1}{3}\)%
15%
30%
Explicaţie
The two numbers must be expressed in the same unit. To convert 495g to kg, it will be divided by 1000
495g = \(\frac{495}{1000}\)
= 0.495kg
To express in percentage, 0.495 will be divided by 16.5 and then multiplied by 100
% will be added to the answer \(\frac{0.4950}{16.5}\) x 100
= 3%