Question

The ratio of copper and zinc in alloy is 9:5, if the weight of copper in alloy is 48.6
grams find the weight of zinc in the alloy.
A train covers the first 60 kilometre of its journey at 80 kilometres per hour, the next​

Answer 1

Answer:

27g zinc is present in alloy

Step-by-step explanation:

let the real weight of copper and zinc=9x and 5x

therefore ,

9x=48.6

x =48.6/9

x = 5.4

similarly,

5×5.4=w

27 g =w

dear second question isn't full...maybe u forget to write half