All questions of Length, Perimeter, and Area for Grade 2 Exam

Explanation:

Ascending Order Comparison:

- 100 cm is the smallest unit of length.
- 2 m is equivalent to 200 cm, which is greater than 100 cm.
- 300 cm is the largest unit of length.

Therefore, the correct ascending order is:
100 cm, 2 m, 300 cm

The capacity of a bucket refers to the amount of liquid or material it can hold. It is usually measured in units such as liters (L) or gallons (gal). However, the given options for measuring the capacity of a bucket are cm, g, kg, and I. Let's analyze each option to determine the correct answer.

- Option a) cm: Centimeters (cm) is a unit of length, not capacity. It measures the distance between two points and cannot be used to measure the capacity of a bucket. Therefore, this option is incorrect.

- Option b) g: Grams (g) is a unit of weight or mass, not capacity. It measures the amount of matter in an object and cannot be used to measure the capacity of a bucket. Therefore, this option is also incorrect.

- Option c) kg: Kilograms (kg) is another unit of weight or mass, similar to grams. Like grams, it cannot be used to measure the capacity of a bucket. Therefore, this option is incorrect as well.

- Option d) I: The correct answer is option 'd' - I. However, the option 'I' seems to be a typo or error in the question. It is likely that the intended answer was liters (L) or gallons (gal), which are commonly used units for measuring the capacity of a bucket.

In conclusion, the capacity of a bucket is typically measured in liters (L) or gallons (gal).

To find out how many glasses of water are required to fill 4 water bottles, we need to understand the given information and then calculate the answer.

Given information:
- Three glasses of water can fill a water bottle.

To find the number of glasses required to fill 4 water bottles, we can break it down into smaller steps:

Step 1: Calculate the number of glasses required to fill one water bottle.
- Given that three glasses of water can fill one water bottle, we can conclude that one water bottle requires 3 glasses of water.

Step 2: Calculate the total number of glasses required to fill 4 water bottles.
- To find the number of glasses required to fill 4 water bottles, we need to multiply the number of glasses required for one water bottle by the number of water bottles.
- In this case, one water bottle requires 3 glasses of water, and we have 4 water bottles.
- So, 3 glasses * 4 bottles = 12 glasses.

Therefore, the correct answer is option 'B': 12 glasses.

Explanation:

To understand why option 'C' (2kg) is the correct answer, we need to have a basic understanding of how a balance works.

A balance is a device used to compare the weights of two objects. It consists of a beam that is supported at its center and has two pans or trays suspended from it. When the weights on both sides of the balance are equal, the beam remains horizontal. However, if the weight on one side is greater than the weight on the other side, the beam will tilt towards the side with the greater weight.

In this scenario, we have a weight of 1kg on one side of the balance. To make the balance go down, we need to add weight to the other side. Let's analyze the given options:

a) 25g: This is a very small weight compared to 1kg. It will not be enough to make the balance go down.

b) 500g: This weight is halfway between 1kg and 2kg. It is possible that adding this weight could make the balance go down, but it is not guaranteed.

2kg: This weight is twice the weight on the other side (1kg). According to the principle of a balance, adding a weight that is twice the weight on the other side will definitely make the balance go down.

d) 60g: This is a relatively small weight compared to 1kg. It will not be enough to make the balance go down.

Based on the analysis above, option 'C' (2kg) is the correct answer. Adding a weight of 2kg to the other side of the balance will make it go down.

Water tank

Statement Analysis:
The statements in question are related to units of measurement for weight. Let's analyze each statement separately:

Statement A: Gram is a unit to measure the weight of a lion.
This statement is False (F). Gram is a unit of measurement for weight, but it is not typically used to measure the weight of a lion. The weight of a lion is usually measured in kilograms or pounds.

Statement B: Kilogram is a unit to measure the weight of a sack of rice.
This statement is True (T). Kilogram is a standard unit of measurement for weight and is commonly used to measure the weight of various objects, including a sack of rice.

Explanation:
The given statements are contrasting the units of measurement for weight.

- Gram: Gram is a metric unit of measurement for weight, symbolized as 'g'. It is used for measuring small and lightweight objects, such as food items, small animals, or everyday objects.

- Kilogram: Kilogram is also a metric unit of measurement for weight, symbolized as 'kg'. It is commonly used for measuring heavier objects, such as human body weight, large animals, or bulk quantities of goods like sacks of rice.

Conclusion:
Based on the analysis, we can conclude that statement A is incorrect, as gram is not typically used to measure the weight of a lion. However, statement B is correct, as kilogram is commonly used to measure the weight of a sack of rice. Therefore, the correct answer is option 'A' - Statement A is wrong, and Statement B is right.