Large Numbers Around Us — Quiz

Q1. In the chapter opening story, Eshwarappa is described as

• A. A school teacher in Karnataka.
• B. A scientist working on rice varieties.
• C. A farmer in Chintamani, Karnataka, who buys rice seeds.
• D. A shopkeeper running a seed bank.

Q2. If a person tastes 3 varieties of rice every day, about how many varieties would they taste in a 100-year lifetime (ignoring leap years)?

• A. About 36,500
• B. About 1,09,500
• C. About 1,00,000
• D. About 10,95,000

Q3. Adding 1 to the largest 3-digit number gives

• A. 1,000
• B. 100
• C. 999
• D. 10,000

Q4. According to the chapter, the height of the Statue of Unity in Gujarat is about

• A. 100 metres
• B. 180 metres
• C. 450 metres
• D. 1,800 metres

Q5. Somu is 1 metre tall. Each floor of his building is about four times his height. If the building has 10 such floors, the approximate height of the building is

• A. 10 metres
• B. 20 metres
• C. 40 metres
• D. 100 metres

Q6. Somu's building is about 40 m tall. The Statue of Unity is 180 m tall. By how much is the Statue of Unity taller than the building?

• A. 40 metres
• B. 100 metres
• C. 180 metres
• D. 140 metres

Q7. Write 70,53,138 in words (Indian system).

• A. Seventy lakh fifty three thousand one hundred thirty eight
• B. Seven crore fifty three lakh thirty eight
• C. Seventy three lakh five thousand one hundred thirty eight
• D. Seven lakh fifty three thousand one hundred thirty eight

Q8. Write 'one lakh twenty-three thousand four hundred and fifty-six' in the Indian place value system.

• A. 12,34,56
• B. 1,23,456
• C. 1,23,4560
• D. 12,3456

Q9. In the Indian system, 1278830 is written with commas as

• A. 12,78,830
• B. 1,278,830
• C. 1,27,88,30
• D. 127,88,30

Q10. Which of the following statements is correct?

• A. Ten lakhs equals ten million.
• B. Ten lakhs equals one million.
• C. One lakh equals one million.
• D. One crore equals one million.

Q11. Fill in the blank with the correct sign: 30 thousand ___ 3 lakhs.

• A. >
• B. =
• C. ≥
• D. <

Q12. A school has 732 students, teachers and staff. The principal orders 750 sweets instead of 700 so that no one is left out. This is an example of

• A. Exact counting.
• B. Rounding down.
• C. Rounding up.
• D. Estimation by guessing.

Q13. What is the nearest lakh of 6,72,85,183?

• A. 6,73,00,000
• B. 6,72,00,000
• C. 6,70,00,000
• D. 7,00,00,000

Q14. According to the 'Populations of Cities' table, Mumbai's 2011 population (1,24,42,373) is closest to

• A. 1 lakh 24 thousand
• B. 1 crore 24 lakhs
• C. 1 arab 24 crores
• D. 1 million 24 thousand

Q15. Roxie says 'Living 1 lakh days would mean living for about 274 years.' This is because (approximately)

• A. 1,00,000 × 365 ≈ 274.
• B. 1,00,000 + 365 = 274 × 100.
• C. 365 × 274 = 1,00,000.
• D. 1,00,000 ÷ 365 ≈ 274.