SEP 20 2026 LET Reviewer - General Education - Math and Science

 Direction: Choose the letter of the correct answer.

To test your knowledge and understanding, please try ro answer the questions before going to the answers.

Question 1 (Math: Number Theory)

• What is the Least Common Multiple (LCM) of the numbers 12, 18, and 30?
  (A) 180
  (B) 360
  (C) 90
  (D) 60

Question 2 (Math: Percentages)

• A dynamic clothing store offers a 25% seasonal discount on a jacket originally priced at 1,600 pesos. What is the final sale price of the jacket?
  (A) 400 pesos
  (B) 1,350 pesos
  (C) 1,200 pesos
  (D) 1,250 pesos

Question 3 (Math: Ratios)

• The ratio of male teachers to female teachers in a local community high school is 3:5. If there are a total of 120 teachers, how many female teachers are currently employed?
  (A) 45 teachers
  (B) 50 teachers
  (C) 60 teachers
  (D) 75 teachers

Question 4 (Math: Algebra)

• Evaluate the algebraic linear expression and find the value of x if:
  3(x - 4) = 2x + 5
  (A) x = 9
  (B) x = 17
  (C) x = 1
  (D) x = -7

Question 5 (Math: Geometry)

• A rectangular public community classroom layout measures 12 meters in length and 9 meters in width. What is the exact diagonal distance from one corner of the room to the opposite corner?
  (A) 15 meters
  (B) 21 meters
  (C) 108 meters
  (D) 25 meters

Question 6 (Math: Probability)

• A single fair six-sided die is rolled once. What is the probability of rolling a number that is classified as a prime number?
  (A) 1/6
  (B) 1/3
  (C) 1/2
  (D) 2/3

Question 7 (Math: Statistics)

• Find the median of the following structural dataset representing exam scores:
  18, 11, 25, 14, 21, 15, 22
  (A) 15
  (B) 18
  (C) 16.5
  (D) 14

Question 8 (Math: Fractions)

• Simplify the complex fraction operation:
  (2/3) + (1/4) - (1/6)
  (A) 7/12
  (B) 5/6
  (C) 3/4
  (D) 9/12

Question 9 (Math: Sequences)

• What is the next consecutive number in the given arithmetic sequence structural loop:
  5, 11, 17, 23, 29, ____?
  (A) 35
  (B) 34
  (C) 36
  (D) 41

Question 10 (Math: Measurement)

• A water tank has a structural volume layout capacity of 4.5 cubic meters. How many liters of pure water can it hold? (1 cubic meter = 1,000 liters)
  (A) 450 liters
  (B) 45,000 liters
  (C) 4,500 liters
  (D) 450,000 liters

Question 11 (Science: Biology)

• Which blood vessel inside the human cardiovascular system holds the sole responsibility of carrying oxygenated blood away from the heart to the rest of the physical body?
  (A) Veins
  (B) Arteries
  (C) Capillaries
  (D) Venules

Question 12 (Science: Biology)

• In the taxonomical classification of living things, which kingdom consists strictly of multicellular, heterotrophic organisms that absorb nutrients from decaying organic matter?
  (A) Plantae
  (B) Animalia
  (C) Protista
  (D) Fungi

Question 13 (Science: Biology)

• What specific type of symbiotic relationship is demonstrated when an orchid grows safely on the bark of a large tree, getting sunlight without harming or helping the host tree?
  (A) Commensalism
  (B) Mutualism
  (C) Parasitism
  (D) Predation

Question 14 (Science: Chemistry)

• An unknown chemical element has an atomic number of 11 and a mass number of 23. How many neutrons are located inside the nucleus of this atom?
  (A) 11 neutrons
  (B) 23 neutrons
  (C) 12 neutrons
  (D) 34 neutrons

Question 15 (Science: Chemistry)

• Which of the following organic or inorganic processes demonstrates a permanent CHEMICAL change in matter?
  (A) Melting of a heavy block of ice
  (B) Rusting of an iron nail exposed to air
  (C) Dissolving table salt into hot water
  (D) Crushing a piece of chalk into powder

Question 16 (Science: Chemistry)

• What type of strong intramolecular chemical bond is formed when two non-metal atoms completely share their valence electrons to achieve stability?
  (A) Ionic Bond
  (B) Metallic Bond
  (C) Hydrogen Bond
  (D) Covalent Bond

Question 17 (Science: Physics)

• A heavy object travels at a constant velocity of 12 meters per second for a span of exactly 5 seconds. What is the total acceleration rate of the object?
  (A) 0 m/s²
  (B) 60 m/s²
  (C) 2.4 m/s²
  (D) 17 m/s²

Question 18 (Science: Physics)

• Which specific law of motion formulated by Sir Isaac Newton states that "for every action, there is always an equal and opposite reaction"?
  (A) Law of Inertia
  (B) Law of Acceleration
  (C) Law of Interaction
  (D) Law of Universal Gravitation

Question 19 (Science: Physics)

• What thermodynamic method of heat transfer describes the circular movement of thermal energy through fluids (liquids or gases) caused by density differences?
  (A) Conduction
  (B) Convection
  (C) Radiation
  (D) Insulation

Question 20 (Science: Earth Science)

• What type of rock is formed when existing sedimentary or igneous rocks are subjected to intense heat and immense pressure deep underground without melting?
  (A) Intrusive Igneous rock
  (B) Extrusive Igneous rock
  (C) Clastic Sedimentary rock
  (D) Metamorphic rock

Question 21 (Science: Earth Science)

• Which specific layer of the Earth's structural layout is liquid in phase, composed mainly of molten iron and nickel, and generates the planet's magnetic field?
  (A) Outer Core
  (B) Inner Core
  (C) Crust
  (D) Mantle

Question 22 (Science: Earth Science)

• What celestial phenomenon occurs when the Moon passes directly between the Earth and the Sun, completely or partially blocking the solar disk from view?
  (A) Lunar Eclipse
  (B) Solstice
  (C) Solar Eclipse
  (D) Equinox

Question 23 (Science: Astronomy)

• Which planet inside the solar system is widely recognized as the hottest planet due to a dense atmosphere that traps heat through a runaway greenhouse effect?
  (A) Mercury
  (B) Venus
  (C) Mars
  (D) Jupiter

Question 24 (Science: Biology)

• What is the specific cell division mechanism that reduces the chromosome number by half, producing four genetically diverse haploid gamete cells?
  (A) Mitosis
  (B) Binary Fission
  (C) Cytokinesis
  (D) Meiosis

Question 25 (Science: Biology)

• Which enzyme found inside human saliva starts the chemical digestion breakdown of complex carbohydrates or starches into simple sugars?
  (A) Amylase
  (B) Pepsin
  (C) Lipase
  (D) Trypsin

ANSWERS

1.A    2.C    3.D    4.B    5.A

6. C    7.B    8.C    9.A    10.C

11.B    12.D    13.A    14.C    15.B

16.D    17.A    18.C    19.B    20.D

21.A    22.C    23.B    24.D    25.A