7.28 - The weight of 72 books is 9 kg.
What is the weight of 80 such books?
b) How many such books weigh 6 kg ?
Answers
Answered by
0
Answer:
72 books weigh 9 kg
1 book weighs 9/72 kg
therefore 80 books weigh 9/72*80
= 10 kg
b) number of books weigh 6 kg= 72/9*6
= 48
Answered by
0
Weight of 72 books is = 9kg
Weight of 1 book is = 72 divide 9 = 8
Weight of 80 books is = 80 multiple by 8
= 640 ans
Weight of 1 book is = 72 divide 9 = 8
Weight of 80 books is = 80 multiple by 8
= 640 ans
Similar questions