9.An alloy of copper and iron weighs 6 kg 500 g. The
ratio of copper to iron is 5 : 8. How much copper
Answers
ANSWER
ANSWERIn 10 kg of 1st alloy the ratio of copper and zinc = 4:1Copper =
ANSWERIn 10 kg of 1st alloy the ratio of copper and zinc = 4:1Copper = 5
ANSWERIn 10 kg of 1st alloy the ratio of copper and zinc = 4:1Copper = 54
ANSWERIn 10 kg of 1st alloy the ratio of copper and zinc = 4:1Copper = 54
ANSWERIn 10 kg of 1st alloy the ratio of copper and zinc = 4:1Copper = 54 ×10kg=8kg Zinc =
ANSWERIn 10 kg of 1st alloy the ratio of copper and zinc = 4:1Copper = 54 ×10kg=8kg Zinc = 5
ANSWERIn 10 kg of 1st alloy the ratio of copper and zinc = 4:1Copper = 54 ×10kg=8kg Zinc = 51
ANSWERIn 10 kg of 1st alloy the ratio of copper and zinc = 4:1Copper = 54 ×10kg=8kg Zinc = 51
ANSWERIn 10 kg of 1st alloy the ratio of copper and zinc = 4:1Copper = 54 ×10kg=8kg Zinc = 51 ×10kg=2kg In 16 kg of 2nd alloy the ratio of copper and zinc = 1:3
ANSWERIn 10 kg of 1st alloy the ratio of copper and zinc = 4:1Copper = 54 ×10kg=8kg Zinc = 51 ×10kg=2kg In 16 kg of 2nd alloy the ratio of copper and zinc = 1:3Copper =
ANSWERIn 10 kg of 1st alloy the ratio of copper and zinc = 4:1Copper = 54 ×10kg=8kg Zinc = 51 ×10kg=2kg In 16 kg of 2nd alloy the ratio of copper and zinc = 1:3Copper = 4
ANSWERIn 10 kg of 1st alloy the ratio of copper and zinc = 4:1Copper = 54 ×10kg=8kg Zinc = 51 ×10kg=2kg In 16 kg of 2nd alloy the ratio of copper and zinc = 1:3Copper = 41
ANSWERIn 10 kg of 1st alloy the ratio of copper and zinc = 4:1Copper = 54 ×10kg=8kg Zinc = 51 ×10kg=2kg In 16 kg of 2nd alloy the ratio of copper and zinc = 1:3Copper = 41
ANSWERIn 10 kg of 1st alloy the ratio of copper and zinc = 4:1Copper = 54 ×10kg=8kg Zinc = 51 ×10kg=2kg In 16 kg of 2nd alloy the ratio of copper and zinc = 1:3Copper = 41 ×16kg=4kg Zinc =
ANSWERIn 10 kg of 1st alloy the ratio of copper and zinc = 4:1Copper = 54 ×10kg=8kg Zinc = 51 ×10kg=2kg In 16 kg of 2nd alloy the ratio of copper and zinc = 1:3Copper = 41 ×16kg=4kg Zinc = 4
ANSWERIn 10 kg of 1st alloy the ratio of copper and zinc = 4:1Copper = 54 ×10kg=8kg Zinc = 51 ×10kg=2kg In 16 kg of 2nd alloy the ratio of copper and zinc = 1:3Copper = 41 ×16kg=4kg Zinc = 43
ANSWERIn 10 kg of 1st alloy the ratio of copper and zinc = 4:1Copper = 54 ×10kg=8kg Zinc = 51 ×10kg=2kg In 16 kg of 2nd alloy the ratio of copper and zinc = 1:3Copper = 41 ×16kg=4kg Zinc = 43
ANSWERIn 10 kg of 1st alloy the ratio of copper and zinc = 4:1Copper = 54 ×10kg=8kg Zinc = 51 ×10kg=2kg In 16 kg of 2nd alloy the ratio of copper and zinc = 1:3Copper = 41 ×16kg=4kg Zinc = 43 ×16kg=12kg
ANSWERIn 10 kg of 1st alloy the ratio of copper and zinc = 4:1Copper = 54 ×10kg=8kg Zinc = 51 ×10kg=2kg In 16 kg of 2nd alloy the ratio of copper and zinc = 1:3Copper = 41 ×16kg=4kg Zinc = 43 ×16kg=12kgLet x kg be the amount of pure copper added Given Copper : Zinc = 3 : 2 in the new alloy (8 + 4 + x) : (2 + 12) = 3 : 2
(8 + 4 + x) : (2 + 12) = 3 : 214
(8 + 4 + x) : (2 + 12) = 3 : 21412+x
(8 + 4 + x) : (2 + 12) = 3 : 21412+x
(8 + 4 + x) : (2 + 12) = 3 : 21412+x =
(8 + 4 + x) : (2 + 12) = 3 : 21412+x = 2
(8 + 4 + x) : (2 + 12) = 3 : 21412+x = 23
(8 + 4 + x) : (2 + 12) = 3 : 21412+x = 23
(8 + 4 + x) : (2 + 12) = 3 : 21412+x = 23 24+2x=42⇒2x=18⇒x=9kg
(8 + 4 + x) : (2 + 12) = 3 : 21412+x = 23 24+2x=42⇒2x=18⇒x=9kg Weight of the new alloy = (8 + 4 + 9 + 2 + 12) = 35 kg
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Answer:
Total alloy given is 6Kg 500 g is 6500 g
Ratio of copper to iron is 5: 8. Therefore, total alloy is 13
Copper = 5/ 13 × 6500 g = 2500 g
Iron = 8/13 × 6500 g = 4000 g