CBSE Class 7 Maths Large Numbers Around Us (Class 7 NCERT New) Quiz 19

1. Calculate 6400 × 62,500 to uncover the average number of litres of water the Amazon river discharges into the Atlantic Ocean every second. Choose the correct value.

A 400,000,000 litres per second B 40,000,000 litres per second C 4,000,000 litres per second D 400,000 litres per second

2. Evaluate 13,95,000 ÷ 150 to uncover the distance (in km) of the longest single-train journey in the world between Moscow and Vladivostok. Choose the correct quotient.

A 9,300 km B 13,950 km C 8,100 km D 1,395 km

3. According to the train-route fact, the longest train route in India runs from Dibrugarh (Assam) to Kanyakumari (Tamil Nadu). Approximately how many kilometers does it cover?

A 4219 km B 3900 km C 1500 km D 7600 km

4. Adult blue whales can weigh more than 10,50,00,000 ÷ 700 kilograms. Calculate this quotient to estimate the weight threshold mentioned.

A 1,50,000 kg B 15,000 kg C 1,050,000 kg D 1500 kg

5. Evaluate 52,00,00,00,000 ÷ 130 to find the weight, in tonnes, of global plastic waste generated in 2021 as given in the fact box. Choose the correct value.

A 400,000,000 tonnes B 40,000,000 tonnes C 4,000,000 tonnes D 4,000 tonnes

6. The RMS Titanic ship carried about 2500 passengers. Can the population of Mumbai fit into 5000 such ships if the population is more than 1 crore 24 lakhs? Select the best answer.

A Yes, because 5000 × 2500 ≥ 1,24,00,000 B No, because 5000 × 2500 ≤ 1,24,00,000 C Yes, because each ship could carry 1,24,00,000 people D No, because 5000 × 2500 = 1,24,000

7. Roxie wonders: “If I could travel 100 kilometers every day, could I reach the Moon in 10 years?” The Earth–Moon distance is 3,84,400 km. How far would she travel in one year at this rate?

A 36,500 km B 3,650 km C 365,000 km D 384,400 km

8. Continuing Roxie’s question, how far would she travel in 10 years at 100 kilometers per day?

A 365,000 km B 3,650,000 km C 38,440 km D 3,84,400 km

9. Based on your calculation, could traveling 100 kilometers every day for 10 years reach the Moon if the distance is 3,84,400 km?

A No, because 365,000 km is less than 3,84,400 km B Yes, because 365,000 km is greater than 3,84,400 km C Yes, because the distance to the Moon is 3650 km D No, because the Moon is only 38,440 km away

10. If a single sheet of paper weighs 5 grams, could you lift one lakh sheets of paper together at the same time?

A No, because they would weigh about 500 kg B Yes, because they would weigh about 5 kg C Yes, because they would weigh about 50 kg D No, because they would weigh about 50 grams