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2015 G5 Elim

The document contains 50 math problems with their answers. It tests various math skills like arithmetic, algebra, geometry, time, ratios, percentages and word problems. Several of the answers like #10, #20, #30, #21, #31, #33, #36, #38 and #41 could benefit from more explanation or clarification to avoid potential arguments over the reasoning.

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Melyn Bustamante
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0% found this document useful (0 votes)
149 views7 pages

2015 G5 Elim

The document contains 50 math problems with their answers. It tests various math skills like arithmetic, algebra, geometry, time, ratios, percentages and word problems. Several of the answers like #10, #20, #30, #21, #31, #33, #36, #38 and #41 could benefit from more explanation or clarification to avoid potential arguments over the reasoning.

Uploaded by

Melyn Bustamante
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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2015 ELIMINATION G5

1.) Write the missing number: 1, 3, 2, 6, 3, 9, 4, ___.

Answer: 12

2.) Using only the number 87, how many times will you use it as a factor to get a product whose ones
digit is 7?

Answer: 5

3.) Write three hundred thousand twelve and 5 tenths in symbols.

Answer: 300 0012. 50

4.) How many 0.001 are there in 1 000?

Answer: 1 000 000

5.) The ratio of two numbers is 7:9. If their difference is 24, what is their sum?

Answer: 192

6.) When Daria bought a glass of juice for Php 15.00 and a sandwich for Php 37.00, she still had Php
73.00 left in her wallet. How much money did Daria have at the beginning?

Answer: Php 125.00

7.) How many 3 cm by 3 cm square tiles can cover a square floor with an area of 36 cm^2.

Answer: 4 square tiles

8.) The volume of a rectangular block is 30, 000 cm^3. What is its volume in dm^3?

Answer: 30 dm^3
9.) The product of 2 two-digit numbers is 351. What is their sum?

Answer: 40

10.) If 2 * 5 = 3, 4 * 9 = 5, and 5 * 12 = 7. What is 12 * 17?

Answer: 9

11.) How many 15 thousandths are there in 3/8?

Answer: 25

12.) What is the sum of the digits in the product of 23 tens and 32 ones?

Answer: 16

13.) What is the sum of 3 consecutive whole numbers if the smallest of these numbers is 9>

Answer: 30

14.) What is 1/5 of the sum of 6 tens and 5 ones?

Answer: 13

15.) Dolly had Php 155.00. She bought a glass of juice for Php 18.00 and a sandwich for Php 41.00. How
much money did she have left?

Answer: Php 96.00

16.) Marissa called her friend at 10:15 am. They talked for 157 min. What time did their conversation
end?

Answer: 12:52

17.) Liza wants to buy a cake for her mother on her birthday. She already has Php 460.00. The cake costs
Php 675.50. How much more does she need to buy the cake?
Answer: Php 212.50

18.) How many 25-centavo coins are equal to Php 5.00?

Answer: 20

19.) If two congruent equilateral triangles are placed side by side, what kind of shape is formed?

Answer: rhombus

20.) What is the value of 15 + 3 x 2 – 6 / 3 – 1 x 3?

Answer: 16

21.) The cost of a box of chocolate decreased from Php 120.00 to Php 115.00. What percent of the
original price is the amount of decrease?

Answer: 4.167%

22.) Mark, Thea, Lota, and Lito want to divide 140 pieces of marbles in the corresponding ratio of
1:2:4:7. How many more marbles will Lota get than Mark?

Answer: 30 marbles

23.) A tank has a capacity of 50 liters. How many seconds will it be filled if the flow rate into it is 2.5 liters
per seconds?

Answer: 20 seconds.

24.) What is the missing number in the sequence? 1, 3, 5, 10, 18, 32, ___.

Answer: 55

25.) What is the sum of all the numbers in the set {2^3, 3^2, 4^3, 3^4}?

Answer: 162
26.) An airplane arrived at 10:45 am. It was delayed for 1 hour and 25 minutes. If the flight time is 1 hour
and 30 minutes, what time was the airplane supposed to depart?

Answer: 7:50 am

27.) On 6 December 2014, Risa bought a load worth Php 300.00 for her cellphone. If the load is valid for
75 days, until when is the load available if December 6 is included in the 75 days?

Answer: February 18, 2015

28.) The average of one set of 3 numbers is 25 and the average of another set of 5 numbers is also 25.
What is the average of the 8 numbers?

Answer: 25

29.) Lina’s weekly transportation expenses reduced by 75% when she joined her aunt in going to school.
If she used to spend Php 140.00 a week, how much does she spend now for transportation?

Answer: P 35.00

30.) 34 – 6 / 3 + 8 x 4 is ___

Answer:

31.) If 50% of a number is 500, how many percent of the number is 250?

Answer: 25%

32.) Observe the pattern: 2, 5, 8, 11, 14, … If the pattern continues, what is the 30th number?

Answer: 89

33.) What number is 2/3 between 7 and 13?

Answer: 11
34.) An airplane departed at 2:15 pm and flew for 1 ½ hours. It arrived 25 minutes earlier than the
scheduled arrival. What should have been its scheduled arrival?

Answer: 4:10 pm

35.) The vertex of an isosceles triangle is 36 degrees. What is the measure of its base angle?

Answer: 72 degrees

36.) The perimeter of an equilateral triangle and a rhombus are both equal to 45 cm. How many cm
shorter is a side of the rhombus than a side of the triangle?

Answer: 3.75

37.) The sum of 2 numbers is 80. Their difference is 16. What is the quotient when the bigger number is
divided by the small number?

Answer: 1.50

38.) A tray of salted eggs contains 30 pieces. Each piece costs Php 11.00. Liza sells each egg at Php 11.75.
How much is her profit if she sold 6 ½ trays of salted eggs?

Answer:

39.) Ernesto is weighing his school bag. He says “if I add 725 grams, it will weigh 2 kilograms”. How many
grams does his bag weigh?

Answer: 1, 275 grams

40.) There are 36 packs of candies in a box. The packs of candies are divided equally among 4 children.
How many packs will each child receive?

Answer: 9 packs

41.) Twenty seven apples are put in box. There are 6 boxes. How many boxes contain exactly the same
number of apples?

Answer:
42.) Liza has read 4/5 of the total number of pages of a book. Today, she reads 21 pages. She still needs
to read 1/10 of the total number of pages to finish reading the book. How many pages does the book
have?

Answer: 210 pages

43.) Alice has 47 apples. She is going to give them equally to 6 children. How many more apples are
needed so that each child will receive 9 apples?

Answer: 7 apples

44.) A container holds 8 times the amount of water in a cup that holds 2 deciliters of water. How many
deciliters of water can be poured into the container?

Answer: 16 deciliters

45.) Each marble weighs 25 grams. The total weight of the marbles is 2 kilograms. How many marbles are
there in the box?

Answer: 80 marbles

46.) An 8-meter ribbon costs Php 96.00. How much is the cost of 4.5 meters of ribbon?

Answer: Php 54.00

47.) Which fraction is the smalles? 3/5, 2/3, ¾, 4/7

Answer: 4/7

48.) Mark added 2 to a number then divided the sum by 3. He multiplied the quotient by 10 then
subtracted 7 from the product and got a difference of 23. What was the number he started with?

Answer: 7

49.) A ribbon is 4 m and 60 cm long. Rissa cut it into shorter pieces each with a length of 50 cm. What is
the length of the piece that was left?
Answer: 10 cm

50.) The area of the square ABCD below is 16 cm^2. If CE = 1 cm, what is the area of triangle ABE?

Answer: 6 cm^2

notes:

#10, how did you get the answer “9”?

#20 and #30, its tricky but I think ( ) is needed in order to eliminate future arguments.

#21, should the answer be 4.167%? I got it from 5/120

#31 my answer is 25%, is it correct? the number in my computation is 1000 so 250 is 25% of it

#33 my answer is 11. I got it from 13-7=6, 2/3 of 6 is 4 so 4+7=11

#36 my answer is 3.75cm. side of equilateral is 45/3=15cm, side of rhombus is 45/4=11.25cm, difference
is 15-11.25=3.75cm

#38 my answer is Php 146.25. here’s my computation: 30 x 0.75 x 6.5 = Php 146.25

#41 Tricky question with 5 as an easy answer but a good source of arguments. Another given number
might make it to argument free question

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