ML Aggarwal Class 10 book is a trusted resource for ICSE students. It provides well-structured solutions to help understand concepts easily. The book covers Mathematics and other subjects with clear explanations. This guide presents important questions and answers for each subject to support learning and exam preparation effectively.
Mathematics
Question: Solve the equation: 2x + 5 = 15.
Answer:
2x = 15 - 5
2x = 10
x = 10/2
x = 5
Question: Find the value of (3² + 4²).
Answer:
(3² + 4²) = 9 + 16 = 25
Question: Solve for x: 3x - 7 = 2x + 5.
Answer:
3x - 2x = 5 + 7
x = 12
Question: Factorize x² - 9.
Answer:
(x - 3)(x + 3)
Question: Find the area of a circle with radius 7 cm.
Answer:
Area = πr² = 3.14 × 7² = 3.14 × 49 = 153.86 cm²
(Additional 15 questions and answers included in the full article.)
Science
Question: What is Newton’s first law of motion?
Answer:
An object remains at rest or in uniform motion unless acted upon by an external force.
Question: Define the term ‘Photosynthesis’.
Answer:
Photosynthesis is the process by which green plants prepare food using sunlight, carbon dioxide, and water.
Question: What is the chemical formula of water?
Answer:
H₂O
(Additional 17 questions and answers included in the full article.)
English
Question: What is a noun?
Answer:
A noun is a word that names a person, place, thing, or idea.
Question: What is the past tense of ‘go’?
Answer:
Went
Mathematics
Question: Solve the equation: 5x - 3 = 2x + 9.
Answer:
5x - 2x = 9 + 3
3x = 12
x = 12/3
x = 4
Question: Simplify: (2x + 3)(x - 4).
Answer:
= 2x² - 8x + 3x - 12
= 2x² - 5x - 12
Question: Solve the quadratic equation: x² - 7x + 10 = 0.
Answer:
(x - 5)(x - 2) = 0
x = 5 or x = 2
Question: What is the volume of a cylinder with radius 4 cm and height 10 cm?
Answer:
Volume = πr²h = 3.14 × 4² × 10 = 3.14 × 16 × 10 = 502.4 cm³
Question: Find the LCM of 12 and 18.
Answer:
LCM = 36
Question: Find the HCF of 24 and 36.
Answer:
HCF = 12
Question: Solve for x: 5(x + 2) = 3x + 10.
Answer:
5x + 10 = 3x + 10
5x - 3x = 10 - 10
2x = 0
x = 0
Question: Solve for x: x² + 6x + 9 = 0.
Answer:
(x + 3)(x + 3) = 0
x = -3
Question: If the diameter of a circle is 10 cm, what is its circumference?
Answer:
Circumference = πd = 3.14 × 10 = 31.4 cm
Question: If a triangle has sides 6 cm, 8 cm, and 10 cm, is it a right-angled triangle?
Answer:
Yes, because 6² + 8² = 10² (36 + 64 = 100).
Science
Question: What is the chemical formula of methane?
Answer:
CH₄
Question: Define the term ‘Acid’.
Answer:
An acid is a substance that releases hydrogen ions (H⁺) when dissolved in water.
Question: What is the process of respiration?
Answer:
Respiration is the process by which living organisms break down food to release energy.
Question: What is the difference between speed and velocity?
Answer:
Speed is the distance covered per unit of time, while velocity is speed in a given direction.
Question: Name the three states of matter.
Answer:
Solid, Liquid, and Gas
Question: What is the formula for force?
Answer:
Force = mass × acceleration (F = ma)
Question: What is the function of the human heart?
Answer:
The heart pumps blood throughout the body to supply oxygen and nutrients to tissues.
Question: Define the term ‘Refraction’.
Answer:
Refraction is the bending of light when it passes from one medium to another.
Question: What is the SI unit of power?
Answer:
The SI unit of power is the watt (W).
Question: How do plants obtain nitrogen?
Answer:
Plants obtain nitrogen from the soil in the form of nitrates.
English
Question: What is an adjective?
Answer:
An adjective is a word that describes or modifies a noun.
Question: What is the plural of ‘child’?
Answer:
Children
Question: Define a verb.
Answer:
A verb is a word that describes an action or state of being.
Question: What is a preposition?
Answer:
A preposition is a word that shows the relationship between a noun or pronoun and other words in a sentence.
Question: Identify the subject in the sentence: “The dog barked loudly.”
Answer:
The subject is “The dog”.
Question: What is the object in the sentence: “She wrote a letter.”
Answer:
The object is “a letter”.
Question: What is the past tense of “eat”?
Answer:
Ate
Question: What is a conjunction?
Answer:
A conjunction is a word used to connect clauses or sentences (e.g., and, but, or).
Question: What is the correct form of the verb in: “She (go) to school every day”?
Answer:
Goes
Question: What is an adverb?
Answer:
An adverb is a word that modifies a verb, adjective, or another adverb.
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