Question

Time taken
10. The ratio of copper and aine in an alloy is 7:5. If the weight of copper in the
alloy is 13.30 kg, find the weight of zinc in it.​

Answer 1

Answer:

hope it helps

Step-by-step explanation:

Given that,

Weight of zinc =7x

Weight of copper =9x

Total weight of alloy

7x+9x=11.7kg

x=1.3 kg

Hence,

Weight of zinc =7×1.3=9.1 kg

Answer 2

Answer:

Let weight of zink is x kg.

a/q

$\frac{13.30}{x} = \frac{7}{5} \\ 7x = 13.30 \times 5 = 66.50 \\ x = \frac{66.50}{7} = 9.5$

so weight of zink is 9.5 kg.

Ans