10 Question MCQ (including Assertion)

Question 1 of 10

How many times larger than \( 4^{-2} \) is \( 4^2 \)?

A \( 4^4 \) times B \( 4^0 \) times C \( 4^{-4} \) times D 16 times

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Question 2 of 10

If a person drinks one glass of water every 10 seconds, how long would it take to finish \( 2 \times 10^{25} \) drops of water? (Assume 1 glass = \( 3.2 \times 10^3 \) drops).

A \( 6.25 \times 10^{22} \) seconds B \( 6.25 \times 10^{21} \) seconds C \( 10^{20} \) seconds D \( 3.2 \times 10^{22} \) seconds

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Question 3 of 10

There are 3 daughters. Each has 3 baskets. Each basket contains 3 keys. Each key opens 3 rooms. How many rooms are there altogether?

A 12 B 27 C 81 D 243

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Question 4 of 10

There are about 100 million (\( 10^8 \)) bee colonies worldwide. If each colony contains around 50,000 (\( 5 \times 10^4 \)) bees, how many bees exist in total?

A \( 5 \times 10^{11} \) B \( 5 \times 10^{12} \) C \( 5 \times 10^{13} \) D \( 5 \times 10^{14} \)

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Question 5 of 10

A person says they are exactly 1 billion (\( 10^9 \)) seconds old. Approximately how many years is this? (Use 1 year \( \approx 3.15 \times 10^7 \) seconds).

A 10 years B 31.7 years C 50 years D 100 years

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Question 6 of 10

A flock of starlings contains 10,000 birds. If the global starling population is estimated at \( 1.3 \times 10^9 \), how many such flocks could there be?

A 1.3 lakh (1,30,000) B 13 lakh (13,00,000) C 1.3 crore (1,30,00,000) D 13,000

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Question 7 of 10

If the worldwide human population is \( 8.2 \times 10^9 \) and every single person owns exactly 30 pieces of clothing, how many pieces of clothing exist in total?

A \( 2.46 \times 10^{10} \) B \( 2.46 \times 10^{11} \) C \( 24.6 \times 10^{11} \) D \( 8.2 \times 10^{12} \)

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Question 8 of 10

Assertion (A): \( 2^{-4} \) is a negative number.
Reason (R): A negative exponent indicates the reciprocal of the base raised to a positive power: \( n^{-a} = \frac{1}{n^a} \).

A Both (A) and (R) are true and (R) is the correct explanation of (A). B Both (A) and (R) are true but (R) is not the correct explanation of (A). C (A) is true but (R) is false. D (A) is false but (R) is true.

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Question 9 of 10

In a second magical pond, the number of lotuses triples every day. If 1 lotus is placed on day zero, how many will there be after 4 days?

A 12 B 64 C 81 D 27

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Question 10 of 10

Nanjundappa donates jaggery equal to Roxie's weight (45 kg) in an old ritual. If jaggery costs ₹70 per kg, what is the total worth of the donation?

A ₹3000 B ₹3150 C ₹2500 D ₹3500

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10 Question MCQ (including Assertion)