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) Mr Tan always gives 50% of his income to his wife. When his income is increased by 60%, he gives her $870 more. Find his income before the increase. $ ___ Answer:_______________ |
| 2) Mr Richard always gives 60% of his income to his wife. When his income is increased by 20%, he gives her $564 more. Find his income before the increase. $ ___ Answer:_______________ |
| 3) Chellamal saves 60% of her salary. When her salary is reduced by 20%, her savings is reduced by $384. How much is her salary at first $ ___ Answer:_______________ |
| 4) Barathan saves 40% of his salary. When his salary is reduced by 10%, his savings is reduced by $580. How much is his salary at first $ ___ Answer:_______________ |
| 5) Mr Singh always gives 20% of his income to his wife. When his income is increased by 40%, he gives her $832 more. Find his income before the increase. $ ___ Answer:_______________ |
| 6) Mr Tan always gives 55% of his income to his wife. When his income is increased by 60%, he gives her $396 more. Find his income before the increase. $ ___ Answer:_______________ |
| 7) Mr Richard always gives 25% of his income to his wife. When his income is increased by 20%, he gives her $975 more. Find his income before the increase. $ ___ Answer:_______________ |
| 8) Swathi saves 60% of her salary. When her salary is reduced by 10%, her savings is reduced by $858. How much is her salary at first $ ___ Answer:_______________ |
| 9) Aravindh saves 40% of his salary. When his salary is reduced by 20%, his savings is reduced by $344. How much is his salary at first $ ___ Answer:_______________ |
| 10) Mr Singh always gives 25% of his income to his wife. When his income is increased by 40%, he gives her $320 more. Find his income before the increase. $ ___ Answer:_______________ |
| 1) Mr Tan always gives 50% of his income to his wife. When his income is increased by 60%, he gives her $870 more. Find his income before the increase. Answer: $2900 SOLUTION 1 :
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| 2) Mr Richard always gives 60% of his income to his wife. When his income is increased by 20%, he gives her $564 more. Find his income before the increase. Answer: $4700 SOLUTION 1 :
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| 3) Chellamal saves 60% of her salary. When her salary is reduced by 20%, her savings is reduced by $384. How much is her salary at first Answer: $3200 SOLUTION 1 :
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| 4) Barathan saves 40% of his salary. When his salary is reduced by 10%, his savings is reduced by $580. How much is his salary at first Answer: $14500 SOLUTION 1 :
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| 5) Mr Singh always gives 20% of his income to his wife. When his income is increased by 40%, he gives her $832 more. Find his income before the increase. Answer: $10400 SOLUTION 1 :
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| 6) Mr Tan always gives 55% of his income to his wife. When his income is increased by 60%, he gives her $396 more. Find his income before the increase. Answer: $1200 SOLUTION 1 :
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| 7) Mr Richard always gives 25% of his income to his wife. When his income is increased by 20%, he gives her $975 more. Find his income before the increase. Answer: $19500 SOLUTION 1 :
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| 8) Swathi saves 60% of her salary. When her salary is reduced by 10%, her savings is reduced by $858. How much is her salary at first Answer: $14300 SOLUTION 1 :
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| 9) Aravindh saves 40% of his salary. When his salary is reduced by 20%, his savings is reduced by $344. How much is his salary at first Answer: $4300 SOLUTION 1 :
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| 10) Mr Singh always gives 25% of his income to his wife. When his income is increased by 40%, he gives her $320 more. Find his income before the increase. Answer: $3200 SOLUTION 1 :
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