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All questions of Algebra for Class 1 Exam

What is the correct ascending order for the following numbers?
15, 32, 5, 27, 10
  • a)
    5, 10, 15, 27, 32
  • b)
    10, 5, 15, 27, 32
  • c)
    5, 15, 10, 27, 32
  • d)
    15, 10, 27, 32, 5
Correct answer is option 'A'. Can you explain this answer?

Muskaan reddy answered
Understanding Ascending Order
To arrange numbers in ascending order means to place them from the smallest to the largest. Let's break down the numbers given: 15, 32, 5, 27, and 10.

Step-by-Step Comparison
- Identify the smallest number:
- The smallest number among these is **5**.
- Next, find the second smallest:
- After **5**, the next smallest number is **10**.
- Continue finding the next smallest:
- The number after **10** is **15**.
- Next in line:
- Following **15**, we find **27**.
- Finally, the largest:
- The largest number is **32**.

Final Arrangement
Therefore, the correct ascending order of the numbers is:
- **5**
- **10**
- **15**
- **27**
- **32**
This leads us to option **A**: **5, 10, 15, 27, 32**.

Why Other Options Are Incorrect
- **Option B: 10, 5, 15, 27, 32**
- Starts with **10**, which is incorrect as **5** is smaller.
- **Option C: 5, 15, 10, 27, 32**
- It incorrectly places **10** after **15**.
- **Option D: 15, 10, 27, 32, 5**
- It places **15** first and **5** last, which is incorrect.

Conclusion
The correct answer is option **A** because it accurately represents the numbers in ascending order.

A man puts an even number of candies in a jar. How many candies could he have put in the pot out of the given options?
  • a)
    999
  • b)
    900
  • c)
    901
  • d)
    905
Correct answer is option 'B'. Can you explain this answer?

Since the question states that the man puts an even number of candies in the jar, the answer must also be an even number. Among the given options, only 900 is an even number, so it is the correct answer.

What's 20 + 20 + 20 + 10 + 10?
  • a)
    60
  • b)
    80
  • c)
    40
  • d)
    120
Correct answer is option 'B'. Can you explain this answer?

The sum of 20 + 20 + 20 + 10 + 10 is 80.
You can calculate this sum by adding each number individually:
20 + 20 + 20 = 60
60 + 10 = 70
70 + 10 = 80
Therefore, the total sum of 20 + 20 + 20 + 10 + 10 is 80.

What number would fit in the blank?
5, 10, 15, ______,25.
  • a)
    17
  • b)
    18
  • c)
    19
  • d)
    20
Correct answer is option 'D'. Can you explain this answer?

The numbers in the sequence 5, 10, 15, ____, 25 are increasing by 5 each time. So, continuing this pattern:
[15 + 5 = 20]
Therefore, the number that fits in the blank is 20. The sequence is 5, 10, 15, 20, 25.

If 1 pen costs $2. How much would 3 pens cost?
  • a)
    $3
  • b)
    $4
  • c)
    $5
  • d)
    $6
Correct answer is option 'D'. Can you explain this answer?

If one pen costs $2, then the cost of three pens would be calculated by multiplying the cost of one pen by the number of pens:
3 pens x $2 per pen = $6
Thus, three pens would cost $6.

Sam had 342 coins. He spent 2. How many coins does he have now?
  • a)
    336
  • b)
    338
  • c)
    340
  • d)
    344
Correct answer is option 'C'. Can you explain this answer?

Sam initially had 342 coins. After spending 2 coins, the calculation would be 342 - 2, resulting in 340 coins. Therefore, Sam now has 340 coins remaining. This subtraction reflects the coins he spent, and the remaining quantity accurately represents the total number of coins he possesses.

What's 5 x 9?
  • a)
    35
  • b)
    15
  • c)
    51
  • d)
    45
Correct answer is option 'D'. Can you explain this answer?

The correct answer is 45 because when you multiply 5 by 9, you get the product of 45.

Which number comes next in the series?
2231, 2331, 2431, ____?
  • a)
    2432
  • b)
    2430
  • c)
    2531
  • d)
    2431
Correct answer is option 'C'. Can you explain this answer?

The series follows a pattern where 100 is added to each number. The first digit increases by 1 and the last two digits remain the same. Therefore, the next number in the series would have a first digit of 2, the last two digits of 31, and a middle digit that increases by 1, resulting in 2531.

A man buys 3 oranges, 4 apples, and 2 bananas. How many fruits did he buy?
  • a)
    10
  • b)
    9
  • c)
    8
  • d)
    12
Correct answer is option 'B'. Can you explain this answer?

The man bought a total of:
- 3 oranges
- 4 apples
- 2 bananas
To find the total number of fruits, you simply add these amounts together:
[ 3 + 4 + 2 = 9 ]
Therefore, the man bought 9 fruits in total.

Paul had $100. He spent half of that money on buying a pair of shoes. How much does he have now?
  • a)
    $50
  • b)
    $55
  • c)
    $60
  • d)
    $90
Correct answer is option 'A'. Can you explain this answer?

Paul had $100 and he spent half of that money on buying a pair of shoes. Half of $100 is $50. Therefore, Paul now has $50 remaining.

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