Question

Джеймс Бонд сумел достать из секретного сейфа золотой слиток 760-ой пробы весом 300г. Бонд знает, что этот слиток получился от сплава 50г золота 560-ой пробы со слитком золота неизвестной пробы. Помогите Джеймсу определить пробу второго слитка

Answer 1

300г- 100%
х-    76%
х=300*76/100=3*76=228г золота в найденном сплаве

50г-100%
у  -56%
у=56*50/100=56/2=28г золота было в сплаве 560 пробы

228-28=200г золота было в сплаве неизвестной пробы
300-50=250г-весил сплав  неизвестной пробы

200/250*1000=200*4=800- проба неизвестного сплава

Answer 2

Determining the Fineness of the Second Gold Ingot

To determine the fineness of the second gold ingot, we need to use the information provided about the first gold ingot and the alloy it was made from.

According to the information given, the first gold ingot is a 760-fineness gold ingot weighing 300 grams. We also know that this ingot is made from an alloy consisting of 50 grams of 560-fineness gold combined with an unknown fineness gold ingot.

To find the fineness of the unknown gold ingot, we can use the following equation:

Total weight of the alloy = Weight of known gold + Weight of unknown gold

In this case, the total weight of the alloy is 300 grams, the weight of the known gold is 50 grams, and the weight of the unknown gold is what we need to find.

Let's solve for the weight of the unknown gold ingot:

Weight of unknown gold = Total weight of the alloy - Weight of known gold

Weight of unknown gold = 300 grams - 50 grams

Weight of unknown gold = 250 grams

Now that we know the weight of the unknown gold ingot is 250 grams, we can determine its fineness.

To calculate the fineness, we can use the following equation:

Fineness of the unknown gold = (Weight of unknown gold / Total weight of the alloy) * 100

Substituting the values we have:

Fineness of the unknown gold = (250 grams / 300 grams) * 100

Fineness of the unknown gold = 83.33

Therefore, the fineness of the second gold ingot is approximately 83.33.

Please note that the calculations provided are based on the information given and may not reflect the exact values in the scenario.