CBSE Class 7 Mathematics Large Numbers Around Us MCQs Set 05

Question. A number is such that its Nearest Lakh, Nearest Ten Lakh, and Nearest Crore are all 5,00,00,000. Which of the following numbers could it be?
(a) 4,99,00,000
(b) 5,49,99,999
(c) 5,50,00,000
(d) 4,50,00,000

Answer: B

Question. When evaluating 14,63,128 – 4,90,020, Estu suggested the difference is near 9,00,000 and is more than 9,00,000. Based on the exact calculation 9,73,108, was Estu's estimate correct?
(a) No, it is less than 9,00,000.
(b) Yes, 9,73,108 is near 9,00,000 and is more than 9,00,000.
(c) No, it is nearer to 10,00,000.
(d) Yes, 9,73,108 is exactly 9,00,000.

Answer: B

Question. Roxie calculated 116 \times 5 as 116 \times \frac{10}{2}. Which property justifies that 824 \times 25 can be calculated as 824 \times \frac{100}{4}?
(a) Addition property
(b) Subtraction property
(c) Multiplication of fractions
(d) Rearrangement of factors

Answer: C

Question. Calculate the product of 72 \times 125 using the shortcut 125 = \frac{1000}{8}.
(a) 7,200
(b) 8,000
(c) 9,000
(d) 90,000

Answer: C

Question. The calculation 125 \times 40 \times 8 \times 25 can be simplified by pairing factors to get powers of ten. What is the value of the product?
(a) 10,000
(b) 100,000
(c) 1,000,000
(d) 10,000,000

Answer: C

Question. What is the product of 333 \times 335?
(Hint: Look for the pattern derived from 3 \times 5 = 15 and 33 \times 35 = 1155.)
(a) 111155
(b) 111555
(c) 11555
(d) 111885

Answer: B

Question. What is the minimum possible number of digits when multiplying two 3-digit numbers?
(a) 3
(b) 4
(c) 5
(d) 6

Answer: C

Question. What is the maximum possible number of digits when multiplying a 3-digit number and a 3-digit number?
(a) 4
(b) 5
(c) 6
(d) 7

Answer: C

Question. The distance between Earth and the Sun is approximately 14,70,00,000 kilometers. How is this number read in the American (International) system?
(a) Fourteen million seven hundred thousand
(b) One hundred forty-seven thousand million
(c) One hundred forty-seven million
(d) One billion forty-seven million

Answer: C

Question. The average water discharge of the Amazon river per second is 40,00,00,000 litres. How many zeroes does this number have?
(a) 7
(b) 8
(c) 9
(d) 10

Answer: B

Question. If the longest single train journey covers 9,300 kms, and the train runs for about 7 days, what is the approximate daily travel distance?
(a) 930 km
(b) 1,328 km
(c) 700 km
(d) 13,950 km

Answer: B

Question. The calculated maximum weight of an adult blue whale is 1,50,000 kilograms. This is equivalent to how many tonnes? (Note: 1,000 kg = 1 tonne, information from outside sources needed for unit conversion, but the question tests the calculated number 1,50,000 kg.)
(a) 15 tonnes
(b) 150 tonnes
(c) 1,500 tonnes
(d) 15,000 tonnes

Answer: B

Question. If a bus can accommodate 50 people, how many passengers can 5,000 Titanic-like ships (carrying 2,500 passengers each) accommodate in total?
(a) 1,00,000
(b) 50,00,000
(c) 1,25,00,000
(d) 1,25,00,000,000

Answer: C

Question. The population of Mumbai is 1,24,42,373. Can this population fit into 5,000 ships, each carrying 2,500 passengers (Total capacity 1,25,00,000)?
(a) No, the population is greater than the capacity.
(b) Yes, the capacity is greater than the population.
(c) They are exactly equal.
(d) The capacity is only half the population.

Answer: B

Question. If Roxie travels 100 kilometers every day for 10 years (assuming 365 days/year), the total distance traveled is 3,65,000 km. The distance to the Moon is 3,84,400 km. Will Roxie reach the moon?
(a) Yes, she travels more than the distance to the Moon.
(b) No, she falls short by 1,940 km.
(c) No, she falls short by 19,400 km.
(d) No, she falls short by 194 km.

Answer: C

Question. If a single sheet of paper weighs 5 grams, what is the total weight of 1 lakh sheets in grams?
(a) 500,000 grams
(b) 50,000 grams
(c) 5,000 grams
(d) 1,00,000 grams

Answer: A

Question. If 250 babies are born every minute across the world, how many babies are born in one hour?
(a) 2,500
(b) 15,000
(c) 25,000
(d) 1,500

Answer: B

Question. How many seconds are in one full day? (Used for the coin counting problem: 1 million coins take 1 million seconds).
(a) 1,440 seconds
(b) 3,600 seconds
(c) 86,400 seconds
(d) 100,000 seconds

Answer: C

Question. Which of the following cities showed the most significant population increase (almost doubled) between 2001 and 2011, based on the provided data?
(a) Mumbai (1,19,78,450 to 1,24,42,373)
(b) New Delhi (98,79,172 to 1,10,07,835)
(c) Bengaluru (43,01,326 to 84,25,970)
(d) Chennai (43,43,645 to 46,81,087)

Answer: C

Question. How many lakhs make 1 crore?
(a) 10
(b) 50
(c) 100
(d) 1,000

Answer: C