Written Instructions:
For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..
For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.
Leave your answers in the simplest form or correct to two decimal places.
| 1) An alloy consists of 36% copper and 37% zinc and the remaining is nickel.Find the amound of nickle in 26 kg of the alloy. kg Answer:_______________ |
| 2) An alloy consists of 23% copper and 32% zinc and the remaining is nickel.Find the amound of nickle in 28 kg of the alloy. kg Answer:_______________ |
| 3) An alloy consists of 33% copper and 22% zinc and the remaining is nickel.Find the amound of nickle in 13 kg of the alloy. kg Answer:_______________ |
| 4) An alloy consists of 19% copper and 35% zinc and the remaining is nickel.Find the amound of nickle in 26 kg of the alloy. kg Answer:_______________ |
| 5) An alloy consists of 39% copper and 25% zinc and the remaining is nickel.Find the amound of nickle in 16 kg of the alloy. kg Answer:_______________ |
| 6) An alloy consists of 30% copper and 34% zinc and the remaining is nickel.Find the amound of nickle in 27 kg of the alloy. kg Answer:_______________ |
| 7) An alloy consists of 12% copper and 30% zinc and the remaining is nickel.Find the amound of nickle in 28 kg of the alloy. kg Answer:_______________ |
| 8) An alloy consists of 19% copper and 10% zinc and the remaining is nickel.Find the amound of nickle in 23 kg of the alloy. kg Answer:_______________ |
| 9) An alloy consists of 20% copper and 26% zinc and the remaining is nickel.Find the amound of nickle in 18 kg of the alloy. kg Answer:_______________ |
| 10) An alloy consists of 32% copper and 25% zinc and the remaining is nickel.Find the amound of nickle in 22 kg of the alloy. kg Answer:_______________ |
| 1) An alloy consists of 36% copper and 37% zinc and the remaining is nickel.Find the amound of nickle in 26 kg of the alloy. Answer: 7.02kg SOLUTION 1 : Given: Percentage of copper = 36% Percentage of zinc = 37% Percentage of nickle = 100-(36+37) = 100-73 =27% Amount of nickle is 26 kg of the alloy = 27% of 26kg = (27÷100) x 26 = 0.27 x 26 = 7.02 kg |
| 2) An alloy consists of 23% copper and 32% zinc and the remaining is nickel.Find the amound of nickle in 28 kg of the alloy. Answer: 12.6kg SOLUTION 1 : Given: Percentage of copper = 23% Percentage of zinc = 32% Percentage of nickle = 100-(23+32) = 100-55 =45% Amount of nickle is 28 kg of the alloy = 45% of 28kg = (45÷100) x 28 = 0.45 x 28 = 12.6 kg |
| 3) An alloy consists of 33% copper and 22% zinc and the remaining is nickel.Find the amound of nickle in 13 kg of the alloy. Answer: 5.85kg SOLUTION 1 : Given: Percentage of copper = 33% Percentage of zinc = 22% Percentage of nickle = 100-(33+22) = 100-55 =45% Amount of nickle is 13 kg of the alloy = 45% of 13kg = (45÷100) x 13 = 0.45 x 13 = 5.85 kg |
| 4) An alloy consists of 19% copper and 35% zinc and the remaining is nickel.Find the amound of nickle in 26 kg of the alloy. Answer: 11.96kg SOLUTION 1 : Given: Percentage of copper = 19% Percentage of zinc = 35% Percentage of nickle = 100-(19+35) = 100-54 =46% Amount of nickle is 26 kg of the alloy = 46% of 26kg = (46÷100) x 26 = 0.46 x 26 = 11.96 kg |
| 5) An alloy consists of 39% copper and 25% zinc and the remaining is nickel.Find the amound of nickle in 16 kg of the alloy. Answer: 5.76kg SOLUTION 1 : Given: Percentage of copper = 39% Percentage of zinc = 25% Percentage of nickle = 100-(39+25) = 100-64 =36% Amount of nickle is 16 kg of the alloy = 36% of 16kg = (36÷100) x 16 = 0.36 x 16 = 5.76 kg |
| 6) An alloy consists of 30% copper and 34% zinc and the remaining is nickel.Find the amound of nickle in 27 kg of the alloy. Answer: 9.72kg SOLUTION 1 : Given: Percentage of copper = 30% Percentage of zinc = 34% Percentage of nickle = 100-(30+34) = 100-64 =36% Amount of nickle is 27 kg of the alloy = 36% of 27kg = (36÷100) x 27 = 0.36 x 27 = 9.72 kg |
| 7) An alloy consists of 12% copper and 30% zinc and the remaining is nickel.Find the amound of nickle in 28 kg of the alloy. Answer: 16.24kg SOLUTION 1 : Given: Percentage of copper = 12% Percentage of zinc = 30% Percentage of nickle = 100-(12+30) = 100-42 =58% Amount of nickle is 28 kg of the alloy = 58% of 28kg = (58÷100) x 28 = 0.58 x 28 = 16.24 kg |
| 8) An alloy consists of 19% copper and 10% zinc and the remaining is nickel.Find the amound of nickle in 23 kg of the alloy. Answer: 16.33kg SOLUTION 1 : Given: Percentage of copper = 19% Percentage of zinc = 10% Percentage of nickle = 100-(19+10) = 100-29 =71% Amount of nickle is 23 kg of the alloy = 71% of 23kg = (71÷100) x 23 = 0.71 x 23 = 16.33 kg |
| 9) An alloy consists of 20% copper and 26% zinc and the remaining is nickel.Find the amound of nickle in 18 kg of the alloy. Answer: 9.72kg SOLUTION 1 : Given: Percentage of copper = 20% Percentage of zinc = 26% Percentage of nickle = 100-(20+26) = 100-46 =54% Amount of nickle is 18 kg of the alloy = 54% of 18kg = (54÷100) x 18 = 0.54 x 18 = 9.72 kg |
| 10) An alloy consists of 32% copper and 25% zinc and the remaining is nickel.Find the amound of nickle in 22 kg of the alloy. Answer: 9.46kg SOLUTION 1 : Given: Percentage of copper = 32% Percentage of zinc = 25% Percentage of nickle = 100-(32+25) = 100-57 =43% Amount of nickle is 22 kg of the alloy = 43% of 22kg = (43÷100) x 22 = 0.43 x 22 = 9.46 kg |