Teachoo MCQ Test

10 Question MCQ (including Assertion)

Preparing for CBSE

Chapter 2 Class 8 - Power Play (Ganita Prakash) | 10 questions

Timed test. Answer every question before time runs out. Correct answers and solutions appear after submission.
Time remaining 960
Question 1 of 10
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Question 1 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?
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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).
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Question 3 of 10
How many times larger than \( 4^{-2} \) is \( 4^2 \)?
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Question 4 of 10
What is the units digit in the value of the expression \( 2^{224} \div 4^{32} \)?
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Question 5 of 10
Assertion: \(4^6\) can be written both as \((4^3)^2\) and as \((4^2)^3\).
Reason: For a power raised to another power, \((n^a)^b=n^{ab}\).
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Question 6 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?
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Question 7 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?
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Question 8 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?
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Question 9 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?
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Question 10 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).
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