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An alloy of nickel and tin has 20 % nickel. Another alloy of nickel and copper has nickel and copper in the ratio 1 ∶ 5. Both the alloys are mixed in the ratio 2 ∶ 5. Quantity of tin is what percent more/less than the quantity of nickel in the final alloy?
Divya has 1500 coins which are in the combination of gold and silver in the ratio of 5 ∶ 7. She distributed the silver coins among his three sons Nimesh, Monil and Gaurav in the ratio of 7 ∶ 12 ∶ 6. If Gaurav and Monil combined 60% of their silver coins and made jewelry from it and sell the remaining silver coins at Rs. 500 per coin, then the amount earned from selling of silver coin was distributed between Monil and Gaurav in the ratio of 12 ∶ 13. Find the difference between the amount earned by Gaurav and Monil from the silver coin transaction.
Which among the following statements is/are true? Exposure of silver chloride to sunlight for a long duration turns grey due to 1. the formation of silver by decomposition of silver chloride 2. sublimation of silver chloride 3. decomposition of chlorine gas from silver chloride 4. oxidation of silver chloride Select the correct answer using the codes given below.
An alloy of Nickel and Chromium is to be made such that the alloy comprises of 80% Nickel and 20% Chromium. Mixture A comprises of 60% Nickel and 40% Chromium, while mixture B comprises of 90% Nickel and 10% Chromium. In what ratio should the mixtures be mixed in order to obtain the desired alloy?
An alloy contains 40% of silver, 30% of copper, and 30% of nickel. How much silver (in kg) should be added to 25 kg of the alloy so that the new alloy contains 50% of silver?
A certain dentist specializes in implanting gold and silver teeth in his patients mouths .He charges $ 650 for a gold tooth an $ 325. for a silver tooth. If his told fees for implanting gold and silver teeth last week were $ 15, 925 in total and he implanted five more gold teeth that silver teeth, how many teeth in total did he implant over the week?
If 3 kg of metal, which is one third silver and the rest aluminium, is mixed with 7 kg of another metal, which is two – seventh silver and the rest aluminium. What is the cost of Silver in new mixture of 10 kg if the cost of silver per kg is Rs. 600?
John, Johny and Janardan participated in a race and each won a different medal among Gold, Silver and Bronze, not necessarily in that order. Each person among them gives two replies to any question, one of which is true and the other is false (in any order). When asked about the details of the medals obtained by them, the following were their replies: John: I won the Gold medal. Johny won the Bronze medal. Johny: John won the Silver medal. I won the Gold medal. Janardan: Johny won the Silver medal. I won the Gold medal. Which among the following is the correct order of the persons who won the Gold medal, the Silver medal and the Bronze medal respectively?
Consider the following statements about silver filigree of Odisha
1. It is one of the most exquisite form of silver work also known as Odisha Tarakasi.
2. The main centre for 'silver filigree' craft is Cuttack.
Which of the statements given above is/are correct?
In an alloy of German silver, the ratio of copper to zinc was 21 : 16 while that of nickel to zinc was 7 : 24 What was the ratio of copper to zinc to nickel in the alloy?