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# LET Reviewer: Mathematics Part 1

**Mathematics Part 1**

1) Which statement is true?

a. √5 is a rational number

b. 0 is a positive number

c. √3 is a real number

d. √4 is an irrational number

2) The thousandths digit of the number 1,234.5678 is ________.

a. 1 c. 8

b. 7 d. 5

3) (4)(-6) + (12x3) = ________

a. 10 c. 14

b. 12 d. 15

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4) The difference between gross profit and cost of goods sold is known as ________.

a. markdown

b. discount

c. net profit

d. invoice price

5) Julius has ₱15,000 in the bank. After a year, he expects it to earn ₱750. What is the rate of interest?

a. 2% c. 5%

b. 4% d. 6%

6) The greatest common divisor of 91, 39 and 78 is ________.

a. 24 c. 39

b. 13 d. 91

7) The property of real numbers which describes (5+6)-3 = 3+(5+6) is ________.

a. Commutative c. Distributive

b. Associative d. Reflexive

8) Which is proportion?

a. 5:4 = 15:12 c. 4:5 = 12:10

b. 8:3 = 16:9 d. ½:7 = 5:2

9) After receiving a 30% discount, Jay paid ₱210.00 for an item. What is the regular price of the item?

a. ₱300 c. ₱380

b. ₱350 d. ₱400

10) Peter borrowed 15,000 from the bank at the rate of 12% per year. How much will he owe the bank after 1.5 years?

a. ₱16,000 b. ₱16,7

c. ₱17,000 d. ₱17,700

11) 1/8 in percent is ________.

a. 10.5% c. 14.5%

b. 12.5% d. 16.5%

12) John invested ₱5,000 in a certain business. How much will his money be in 2 years if it earns 12% interest in a year?

a. ₱6,000 c. ₱6,200

b. ₱6,100 d. ₱6,300

13) What do you call an equality of 2 ratios?

a. quotient c. percentage

b. fraction d. proportion

14) The number of hours spent for review in Algebra, Chemistry and English is in the ratio of 4:3:1. How many hours does each student spend for Chemistry in a 24-hour review package?

a. 3 c. 9

b. 6 d. 12

15) What is the value of 3.5 kilograms in grams?

a. 35 c. 3,500

b. 350 d. 35,000

16) The least common multiple of 18 and 24 is ________.

a. 6 c. 36

b. 24 d. 72

17) How many pieces of 7 ½ inches wire can be cut from a 31 ¼ ft roll of wire?

a. 5 b. 10

c. 25 d. 50

18) What do you call a triangle with equal sides?

a. scalene b. equilateral

c. isosceles d. right

19) How many centimeters are there in 100 millimeters?

a. 0.1 b. 1

c. 10 d. 100

20) A ball is drawn at random from a box containing 3 red balls, 4 white balls and 5 blue balls. What is the probability that it is not blue?

a. ¼ b. ½

c. 7/12 d. 1

21) A salesman gets a 15% commission for the first ₱20,000, and 10% for the amount over ₱20,000 of his total sales. How much does he get for a total sale of ₱50,600?

a. 5,060 b. 6,060

c. 7,060 d. 8,060

22) A TV set that originally cost ₱20,000 is now sold at ₱18,000. What is the percentage decrease in the price of the TV set?

a. 10% b. 20%

c. 30% d. 40%

23) At 70 kph, Robin can reach his home within 50 minutes. At what rate should he drive his car so that he can reach home 15 minutes earlier?

a. 60 kph b. 80 kph

c. 90 kph d. 100 kph

24) A typist can finish 4 pages in 6 minutes. How long will it take for him to finish 10 pages?

a. 20 minutes b. 15 minutes

c. 10 minutes d. 8 minutes

25) Four people can finish painting a room within 4 hours. If only 2 people are available, how many hours do they have to work to finish the same job?

a. 4 b. 6

c. 8 d. 10

26) (3√8) (3√18) = __________

a. 108 b. 110

c. 112 d. 114

27) Jean bought 5 kilos of rice worth ₱200 and another 4 kilos of rice worth ₱144. What is the average price of rice per kilo?

a. ₱172.00 b. ₱172.11

c. ₱175.00 d. ₱175.11

28) 72 is ¾ of what number?

a. 76 b. 84

c. 86 d. 96

29) 0.0125 expressed in fraction in lowest term is ________.

a. 1/8 b. ¼

c. 1/800 d. 1/80

30) Jack and Jill work as part of the service crew in one of the fastfood chains. If their earnings were in the ration of 7:8 respectively, how much did Jack earned when Jill had earned ₱6,400?

a. ₱6,200 b. ₱5,600

c. ₱5,800 d. ₱6,080

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