Question

The weight of 90 bools is 9kg.What is the weight of 50 such books?( but the result should be 5kg)​

Answer 1

Answer:

5kg

Step-by-step explanation:

90 books=9kg

correction:

90÷9=10

10×9=90

50÷10=5

5×10=50

50 books=5kg

Answer 2

Answer:

5 kg

Step-by-step explanation:

if 90 books is 9 kg

then the weight of 50 books is (?)

so that, weight = 50 × 9 / 90

= 5 kg