Question

The ratio between copper and iron in an object is 4:5.if the weight of objects is 90kg,findthe weight of copper and iron separately

Answer 1

Answer:

copper=4 (in ratio)

iron=5 (in ratio)

total weigh of object is 90 kg

let the ratio be 4x and 5x

means 4x+5x =90kg

9x=90

X=90\9

X=10

IRON=4×X

4x10=40

copper=5xX

5x10=50

Step-by-step explanation:

hope it help