6 Books Weigh 1 260 Kg

6 books weigh 1 .260 kg. How many books will weigh 3.150 kg ?

Answers:

1 kg 260 g or 1.260 kg, no. of books = 6

And in 1 kg, no. of books = 6/1.260

And in 3.150 kg, no. of books = (6 × 3.150)/1.260

= (6 × 3150)/1260

= 3150/210

= 15 books