Question

an alloy consists of zinc and copper in the ratio of 4:5 .How much copper is there in 54kg of alloy

Answer 1

Answer:

30kg of copper

Step-by-step explanation:

ratio of zinc to copper in an alloy is given as 4:5

let x be the proportion,

=> the total parts = 4x+5x = 9x

ie., 9x = 54kg

=> x = 54/9 kg

=> x = 6kg

so, the amount of copper = 5x = 5*6kg = 30kg

Answer 2

Answer:

wight of zinc = 4x = 4*6 = 24 kg

wight of copper = 5x = 5*6 = 30 kg

Step-by-step explanation:

let there wight = x

ratio of there = 4:5

total wight = 54 kg

acorrding to question -------

so, 4x + 5x = 54

= 9x = 54

= x = 54/9 = 6

so wight of zinc = 4x = 4*6 = 24 kg

, wight of copper = 5x = 5*6 = 30 kg

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