Question

in 10 g of an alloy 4 whole 1/4 is the copper .the rest is zinc , find the ratio by weight of zinc to Copper.
PLEASE GIVE THE FULL SOLUTION NOT ONLY THE ANS ​

Answer 1

Correct Question :-

In 10g of an alloy 4¼ is the copper. The rest is zinc, find the ratio by weight of zinc to Copper.

Answer:-

The ratio of weight of zinc : copper is

17/4:23/4 OR 0.223:0.17.

Step-by-step explanation

To Find :-

• The ratio of the weight of zinc to copper.

★ Solution

Given that,

• Total weight of alloy = 10g
• 4¼ of the alloy is copper.

Finding, The part of zinc in 10g of alloy :-

⇒ 10 - 4¼

⇒ 10 - 17/4

⇒ (40 - 17)/4

⇒ 23/4

Therefore,

Part of copper in 10g of alloy = 17/4.

Part of zinc in 10g of alloy = 23/4.

Now, According the question,

• The ratio of zinc to copper :-

⇒ Zinc : Copper

⇒ 17/4 : 23/4 or 0.223 : 0.17

_____________________________

VERIFICATION

• 17/4 + 23/4 = 10

We have,

L.H.S = 17/4 + 23/4

R.H.S = 10

By simplifying the L.H.S :-

⇒ 17/4 + 23/4

⇒ (17 + 23)/4

⇒ 40/4

⇒ 10

Now, L.H.S = R.H.S

Hence, Verified!.

Answer 2

Question :

In 10 g of an alloy 4¼ g is the copper and the rest is zinc , find the ratio by weight of zinc to Copper.

GivEn Data :

• Total weight of both zinc and copper = 10 g

• Weight of Copper = 4¼ g

To Find :

The ratio of zinc and copper

How to do :

• First we need to find the weight of zinc by subtracting copper's weight from the total weight

• Then we need to get the ratio of zinc and copper

Solution :

Finding zinc's weight :

Weight of zinc = Total weight - Weight of copper

Weight of zinc = 10 g - 4¼ g

Weight of zinc = 10 g - 17/4 g

Weight of zinc = 40/4 g - 17/4 g

Zinc's weight = 23/4 g

Hence, the weight of zinc is 23/4 g

Finding the ratio of zinc and copper

Zinc : Copper

• 23/4 : 17/4

Hence, the ratio is 23/4 : 17/4

Final Answers :

• Weight of zinc = 23/4 g

• Ratio of zinc and copper = 17/4 g

Regards

# BeBrainly