Tiêu đề DOC Ans 4 Answers to Items 21 to 40 (Word Problems).docx ✅

philcivilserviceexam.blogspot.com 1 philcivilserviceexam.blogspot.com 21. Nena has applied for employment in the next three different countries namely: Hongkong; Malaysia and Brunei. In Hongkong the monthly salary in HK $500; Malaysia Mal $300 and Brunei $200 consider the following: 1 HK $ = P2.90 1 Br $ = P 12.15 1 Mal $ = P 8.40 Which country has the best offer? 1. Hongkong 2. Brunei 3. Malaysia 4. Hongkong – Brunei 5. All Solution: Which is the best offer in pesos? HK = 500 x 2.90 = P 1,450 Mal = 300 x 8.40 = P 2,520 Br = 200 x 12.15 = P 2,430 22. Which of the following commodities has the least increase U.S. $ per pound from 1987 – 1990. 1. copper from 0.63 to 1.14 2. aluminum from 0.62 to 0.63 3. nickel from 1.72 to 3.55 4. zinc from 0.43 to 0.68 5. lead from 0.21 to 0.30 Solution: Simple Decimal Subtraction, Find the least number 1. copper: 1.14 - 0.63 = 0.51 2. aluminum: 0.63 - 0.62 = 0.01 3. nickel: 3.55 - 1.72 = ?? (Tip: you can opt whether to solve this or not, by just knowing the number, you can see that the result would be much greater than that of aluminum, 0.01, we are looking for the least. This would save you time.) 4. zinc from 0.68 - 0.43 = (Much larger than 0.01) 5. lead from 0.21 to 0.30 = (Much larger than 0.01)

philcivilserviceexam.blogspot.com 3 philcivilserviceexam.blogspot.com 27. An employee spends about P1,330.00 a month. This sum is 70% of his monthly salary. How much does he receives a month? 1. P1,900.00 2. P2,265.00 3. P2,900.00 4. P2,290.00 5. P2,000.00 If a and b are any two positive real numbers, then; 1. –b a+b 2. b-a a+b 3. a-b a+b 4. a-b a+b 5. none of these Tip: The question must be an error, you can magic your answer here or you can guess what was the missing question. My guess is that which would give a result of positive number by which both 3 and 4 would qualify, if asked the opposite question, which would return a negative value, both 1 and 2 would also qualify. 28. Which pair of numbers below has 120 as a product? 1. 7 & 16 2. 15 & 8 3. 18 & 5 4. 25 & 4 5. none of these 29. A certain number is doubled and then divided by 8. If after subtracting 4 from this result, one gets 16, the original number is: 1. 32 2. 48 3. 64 4. 80 5. 70 Solution: Simple Algebra.
philcivilserviceexam.blogspot.com 4 philcivilserviceexam.blogspot.com 30. The numerator of a fraction is 4 less than its denominator, if 3 is added both the numerator and denominator, the resulting number is ¾. What is the original fraction? 1. 8/14 2. 9/13 3. 9/12 4. 10/13 5. 8/13 Solution: Algebra and fraction. Find . Tip: By inspection only choice 2 would fit the description of the fraction, which is the numerator is less than 4 than the denominator. Choice 2 is the obvious answer. Alternate Solution (Check): From the fraction, we have 2 equations: x - 1 = 3y and x + 3 = 4y Substitute y in equation 1: y = (x – 1)/3 to equation 2. Therefore: 31. Each box of ballpen contains 24 pieces. If an employee in an office given 3 ballpens. How many boxes will be needed for 168 employees? 1. 17 2. 21 3. 22 4. 25 5. 31 Solution: 8 employees per box. 168 employees divided by 8 employees per box = 21 boxes 32. An employee who receives P306.00 each payday saves P1.50 of every P9.00 of his earnings. If the employee is paid two times a month, how much he would save after four months?