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.
  • 400,000,000 litres per second
  • 40,000,000 litres per second
  • 4,000,000 litres per second
  • 400,000 litres per second
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.
  • 9,300 km
  • 13,950 km
  • 8,100 km
  • 1,395 km
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?
  • 4219 km
  • 3900 km
  • 1500 km
  • 7600 km
Adult blue whales can weigh more than 10,50,00,000 ÷ 700 kilograms. Calculate this quotient to estimate the weight threshold mentioned.
  • 1,50,000 kg
  • 15,000 kg
  • 1,050,000 kg
  • 1500 kg
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.
  • 400,000,000 tonnes
  • 40,000,000 tonnes
  • 4,000,000 tonnes
  • 4,000 tonnes
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.
  • Yes, because 5000 × 2500 ≥ 1,24,00,000
  • No, because 5000 × 2500 ≤ 1,24,00,000
  • Yes, because each ship could carry 1,24,00,000 people
  • No, because 5000 × 2500 = 1,24,000
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?
  • 36,500 km
  • 3,650 km
  • 365,000 km
  • 384,400 km
Continuing Roxie’s question, how far would she travel in 10 years at 100 kilometers per day?
  • 365,000 km
  • 3,650,000 km
  • 38,440 km
  • 3,84,400 km
Based on your calculation, could traveling 100 kilometers every day for 10 years reach the Moon if the distance is 3,84,400 km?
  • No, because 365,000 km is less than 3,84,400 km
  • Yes, because 365,000 km is greater than 3,84,400 km
  • Yes, because the distance to the Moon is 3650 km
  • No, because the Moon is only 38,440 km away
If a single sheet of paper weighs 5 grams, could you lift one lakh sheets of paper together at the same time?
  • No, because they would weigh about 500 kg
  • Yes, because they would weigh about 5 kg
  • Yes, because they would weigh about 50 kg
  • No, because they would weigh about 50 grams
If 250 babies are born every minute across the world, will a million babies be born in a day?
  • No, about 3,60,000 babies per day at that rate
  • Yes, because 250 × 24 = 6,000 babies per day
  • Yes, about 1,000,000 babies per day exactly
  • No, about 86,400 babies per day at that rate
Can you count 1 million coins in a single day if you count 1 coin every second?
  • No, because one day has 86,400 seconds
  • Yes, because one day has 1,000,000 seconds
  • Yes, if you skip breaks, because one day has 100,000 seconds
  • No, because one day has 8,640 seconds
How many lakhs make a billion? Choose the correct value in the Indian system.
  • 10,000 lakhs
  • 1,000 lakhs
  • 1,00,000 lakhs
  • 100 lakhs
Using the number cards 4000, 13000, 300, 70000, 150000, 20, 5, each card used at most once and any operations allowed, which of the following values can be made and is closest to ?
  • (using )
  • (using )
  • (using )
  • (using )
Find out how many coins should be stacked to match the height of the Statue of Unity. Assume each coin is 1 mm thick and the statue is about tall.
  • coins
  • coins
  • coins
  • coins
Grey-headed albatrosses can cover about in a day, and one of the longest single trips is about . Approximately how many days would such a trip take?
  • days
  • days
  • days
  • days
Bald eagles can fly as high as , Mount Everest is about , and aeroplanes can fly as high as . How many times bigger are these heights compared to Somu’s building?
  • About times
  • About times
  • About times
  • Cannot be determined from the given information
Using the seven-segment style shown, how many sticks are required to write the number ?
  • sticks
  • sticks
  • sticks
  • sticks
Make or write the number . How many sticks does this require, using the seven-segment style shown?
  • sticks
  • sticks
  • sticks
  • sticks
Preetham wants to insert one more digit ‘1’ somewhere in the number . Where should he place the digit ‘1’ to get the biggest possible number?
  • Before
  • Between and
  • Between and
  • After
Convert 3 crore into numbers
  • 30,00,000
  • 3,00,00,000
  • 300,00,000
  • 3,000,000
Which number is written correctly in International system?
  • 10,00,000
  • 1,000,000
  • 10,000,00
  • 100,00,000
How many zeros are there in 1 crore?
  • 5
  • 6
  • 7
  • 8
Standard expanded form of 4,05,06,010 is:
  • 4,00,00,000 + 5,00,000 + 6,000 + 10
  • 4,00,00,000 + 5,00,000 + 600 + 10
  • 4,00,00,000 + 50,000 + 6,000 + 10
  • 4,00,00,000 + 5,000 + 6,000 + 10
Population of a city is 2,45,67,890. Which is true?
  • It is more than 3 crore
  • It is less than 2 crore
  • It is exactly 2 crore
  • It is between 2 crore and 3 crore
A country has 7,50,00,000 people.This equals:
  • 7.5 million
  • 75 million
  • 750 million
  • 7 million
Find quick ways to solve this problem : 116 x 5
  • 543
  • 580
  • 495
  • 2650
What is the expanded form of 8,945?
  • 8000 + 900 + 40 + 5
  • 800 + 900 + 40 + 5
  • 8000 + 90 + 40 + 5
  • 8000 + 900 + 4 + 5
What is the place value of 7 in 5,73,421?
  • 7,000
  • 70,000
  • 700
  • 7
How is 3,45,67,890 written in words?
  • Thirty four lakh fifty six thousand seven hundred ninety
  • Three lakh forty five thousand six hundred seventy eight
  • Three crore forty five thousand sixty seven thousand
  • Three crore forty five lakh sixty seven thousand eight hundred ninety
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