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Knowing Our Numbers | Maths Olympiad Class 6 PDF Download
Q1: If a factory produced 182736 cars in 2021, 768253 cars in 2022, and 892514 cars in 2023, how many fewer cars were made in 2023 compared to the total of 2021 and 2022 combined?
(a) 58745
(b) 58475
(c) 57845
(d) 54875
Ans: (B)
- First, calculate the total number of cars produced in 2021 and 2022: 182736 + 768253 = 950989.
- Next, find the number of cars made in 2023: 892514.
- Now, determine the difference: 950989 (2021 and 2022 total) - 892514 (2023 total) = 58475.
- Thus, the factory manufactured 58475 fewer cars in 2023 compared to the combined total of 2021 and 2022.
Q2: Jatin made a deposit of ₹ 35673 into his bank account on Tuesday and took out ₹ 3568 on Wednesday. He then added ₹ 24113 on Friday. What is the total balance in his account by Saturday?
(a) ₹ 56218
(b) ₹ 57318
(c) ₹ 55118
(d) ₹ 49218
Ans: (A)
- Initial deposit: Jatin deposited ₹ 35673 on Tuesday.
- Withdrawal: He withdrew ₹ 3568 on Wednesday, leaving him with ₹ 35673 - ₹ 3568 = ₹ 32005.
- Second deposit: On Friday, he deposited an additional ₹ 24113, bringing the total to ₹ 32005 + ₹ 24113 = ₹ 56118.
- Final total: Therefore, the total amount in Jatin's account on Saturday is ₹ 56218.
Q3: The distance from Akash's home to his school is 2 km 385 m. If he walks to school and back every day, what is the total distance he travels from Monday to Friday?
(a) 23 km 870 m
(b) 23 km 850 m
(c) 21 km 860 m
(d) 20 km 850 m
Ans: (B)
- Total distance from Akash's home to school is 2 km 385 m.
- Distance he covers in one day (to and from school) is (2 km 385 m) × 2 = 4 km 770 m.
- He goes to school for 5 days (Monday to Friday).
- Total distance covered in 5 days is (4 km 770 m) × 5 = 23 km 850 m.
Q4: 950 crankcases are produced daily in a factory. How many crankcases will be produced in total during the months of October, November, and December? (Assuming the factory operates every day in these three months.)
(a) 83700
(b) 85400
(c) 84700
(d) 87400
Ans: (D)
- Daily production of crankcases is 950.
- Total number of days in October, November, and December is 31 + 30 + 31 = 92.
- Therefore, the total crankcases produced in 92 days is 950 × 92 = 87400.
- This means the factory will manufacture 87400 crankcases in those three months.
Q5: Ansh multiplied 160 by 89 instead of multiplying by 79. How much was his answer greater than the correct answer?
(a) 1600
(b) 16000
(c) 10060
(d) 10640
Ans: (A)
- Answer given by Ansh: 160 × 89 = 14240
- Correct answer: 160 × 79 = 12640
- Difference: 14240 – 12640 = 1600
- Thus, Ansh's answer is 1600 greater than the correct answer.
The document Knowing Our Numbers | Maths Olympiad Class 6 is a part of the Class 6 Course Maths Olympiad Class 6.
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FAQs on Knowing Our Numbers - Maths Olympiad Class 6
| 1. What are the basic concepts of numbers that Class 6 students should understand? |  |
Ans.Class 6 students should understand concepts such as place value, comparing and ordering numbers, rounding numbers, and basic operations like addition, subtraction, multiplication, and division. They should also be familiar with whole numbers, integers, and rational numbers.
| 2. How can I improve my understanding of numbers for the Class 6 exam? | |
Ans.To improve understanding, students should practice solving numerical problems regularly, use visual aids like number lines, and engage in group study sessions. Additionally, reviewing previous exam papers and seeking help from teachers or online resources can enhance their grasp of the concepts.
| 3. What are some examples of real-life applications of numbers that Class 6 students can relate to? | |
Ans.Class 6 students can relate to real-life applications such as budgeting for school supplies, measuring ingredients while cooking, understanding distances in travel, and interpreting data from graphs and charts in daily news or school projects.
| 4. Why is it important to learn about large numbers in Class 6? | |
Ans.Learning about large numbers is important because it helps students understand how to manage and interpret data in everyday life, such as population statistics, distances, and more. It also prepares them for advanced mathematical concepts in higher grades.
| 5. What strategies can help students memorize multiplication tables effectively? | |
Ans.Students can memorize multiplication tables by using repetitive practice, creating songs or rhymes, using flashcards, and practicing with friends or family. Additionally, visual aids like charts can make the learning process more engaging and effective.
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