Question

6 books weigh 1.260 kg how many books will weigh 3.150 kg??

Answer 1

1.260kg wiegh of 6 books
3.150 kg weigh of

$\frac{6}{1.260} = \frac{x}{3.150}$
$\frac{6}{1.260} \times \frac{x}{3.150} \\ 1.260x = 6 \times 3.150 \\ x = \frac{6 \times 3.150}{1.260 } \\ x = 15$
15 books