Question

the weight of 78 book is 13 kg . What is the weight of 60 such books &how many such books will weight 30 kg​

Answer 1

Answer:

Ans:- weight if 60 books = 10kg

And:- Number of book = 180 books

Answer 2

Answer:

1) weight of 60 such books = 10kg

2) Numer of 30 kg such books = 180 books

Step-by-step explanation:

Weight of 78 books is 13 kg

1) weight of 1 book =13/78 kg

weight of 60 books = 60×13/78= 10kg

2) Number of books weighing 13kg = 78

Number of books weighing 1kg = 78/13 = 6

So numer of books weighing 30 kg = 30×6=180 books