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Class 9 (1618 questions)
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by GIANSH GUPTA KHUNDKER
· Class 9
WHAT IS CYBER?
?????????????????????????????????????
Cyber
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
The number 7¹² - 2¹² is perfectly divisible by which of the following pairs?
(a) Both 5 and 9
(b) Both 5 and 11
(c) Both 9 and 13
(d) Both 3 and 7
Maths
Number Systems
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by GIANSH GUPTA KHUNDKER
· Class 9
The sides of a triangle are in the ratio 3 : 4 : 5. If the perimeter of this triangle is 36 cm, what is its total surface area?
(a) 54 cm²
(b) 60 cm²
(c) 72 cm²
(d) 108 cm²
Maths
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
The mean age of a combined group of men and women is 35 years. If the mean age of the men is 36 years and the mean age of the women is 32 years, find the percentage of women in the group.
(a) 20%
(b) 25%
(c) 50%
(d) 75%
Maths
Statistics
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by GIANSH GUPTA KHUNDKER
· Class 9
Find the value of x if \(9^x - x^4 = 65\), given that x is a positive integer.
(a) 1
(b) 2
(c) 3
(d) 4
Maths
Number Systems
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by GIANSH GUPTA KHUNDKER
· Class 9
If the linear equation (3a - 12)x + b + 7 = 0 has infinitely many solutions for x, what is the value of a + b?
(a) -3
(b) 3
(c) -11
(d) 11
Maths
Linear Equations in Two Variables
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by GIANSH GUPTA KHUNDKER
· Class 9
WHAT IS MOTION????????????????????????????????????????????????????????????????????
Science
Motion
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by GIANSH GUPTA KHUNDKER
· Class 9
During oxidative phosphorylation in aerobic cellular respiration, which component of the mitochondrion builds up a high concentration gradient of protons (H⁺) to drive ATP synthesis via ATP synthase?
Science
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
If 20.0 g of sulfur dioxide (SO₂) reacts with 10.0 g of oxygen (O₂) to produce sulfur trioxide (SO₃) according to the balanced equation 2SO₂(g) + O₂(g) → 2SO₃(g), what is the mass of the excess reactant remaining unreacted? (Molar masses: SO₂ = 64 g/mol, O₂ = 32 g/mol)
Science
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
An object moves along a straight line such that its velocity v as a function of time t is given by v(t) = 3t² - 12t + 9 (in m/s). What is the total distance traveled by the object in the time interval from t = 0 s to t = 3 s?
Science
Other
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by ABHIJEET KUMAR
· Class 9
Find all the positive integers a,b,c,d so that a+b+c+d-3=ab=cd.
Maths
Polynomials
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by GIANSH GUPTA KHUNDKER
· Class 9
Why do we fall ill?
Science
Why Do We Fall Ill
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by GIANSH GUPTA KHUNDKER
· Class 9
He has been living in Delhi __________ the last five years.
English
Prepositions
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by GIANSH GUPTA KHUNDKER
· Class 9
The historic summit will take place __________ the morning of October 15th.
English
Prepositions
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by GIANSH GUPTA KHUNDKER
· Class 9
He is blind __________ his own son’s faults.
English
Prepositions
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by GIANSH GUPTA KHUNDKER
· Class 9
You must abstain __________ consuming junk food to stay healthy.
English
Prepositions
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by GIANSH GUPTA KHUNDKER
· Class 9
The old man is dealing ________ hand-loom textiles these days.
English
Prepositions
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by GIANSH GUPTA KHUNDKER
· Class 9
If she __________ more carefully, she would not have made that terrible blunder during the presentation.
English
Verbs
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by GIANSH GUPTA KHUNDKER
· Class 9
Four professionals—a Doctor, Lawyer, Engineer, and Architect—sit around a square table, one on each side.
1. The Doctor sits directly opposite to Mr. Sharma.
2. The Lawyer sits to the immediate right of Mr. Verma.
3. Mr. Gupta sits directly opposite to Mr. Chawla.
4. The Architect is to the immediate left of Mr. Chawla.
What is the profession of Mr. Sharma?
Reasoning
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
Three students—Aryan, Bhavna, and Charan—are suspected of breaking a window. One of them always tells the truth, one always lies, and one alternates between truth and lies. They make the following statements:
• Aryan: Charan broke the window. I am a truth-teller.
• Bhavna: Aryan is lying. Charan did not break it.
• Charan: I didn't do it. Bhavna is the one who always lies.
Who actually broke the window?
Reasoning
Other
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