RBSE Solutions Class 5 Maths Chapter 12 Weight Important Questions

Rajasthan Board RBSE Class 5 Maths Chapter 12 Weight Additional Questions

Multiple Choice Questions

Question 1. 1000 gram means
(a) 2 kg.
(b) 10 kg.
(c) 1 kg.
(d) 100 kg.
Answer: (c) 1 kg.
In simple words: The metric system defines 1000 grams as exactly equal to 1 kilogram. This is a basic conversion to remember for weights.

🎯 Exam Tip: Remember the fundamental conversion: 1000 grams equals 1 kilogram. This is a core unit conversion.

Question 2. 2 kg 250 gram flour can be represented in gram
(a) 225 gram.
(b) 2250 gram.
(c) 22.50 gram.
(d) 2.250 gram
Answer: (b) 2250 gram.
In simple words: To change 2 kg to grams, multiply 2 by 1000, which gives 2000 grams. Then, add the remaining 250 grams to get a total of 2250 grams.

🎯 Exam Tip: Convert all parts to the smallest unit (grams in this case) before adding them together to find the total.

Question 3. Half kilogram weight equal to
(a) 500 gram.
(b) 750 gram.
(c) 1000 gram.
(d) 100 gram.
Answer: (a) 500 gram.
In simple words: A kilogram is 1000 grams. So, half of a kilogram is half of 1000 grams, which is 500 grams.

🎯 Exam Tip: Always remember that "half" means dividing by two. Half of 1000 grams is 500 grams.

Answers

Question 7. In the following, fill in the blanks
1. Multiply kilogram unit by ........... to change it into gram unit :
2. 1 kilogram = ......... gram
3. 2500 gram = ......... kilogram
4. \( \frac {3}{4} \) kg means ......... gram
5. Divide gram unit by ........... to change it into kilogram unit
6. 3 kilogram = ......... gram
7. 1500 gram = ......... kilogram.
Answer:
1. 1000
2. 1000
3. 2.5
4. 750
5. 1000
6. 3000
7. \( 1\frac {1}{2} \) (or 1.5)
In simple words: To change kilograms to grams, you multiply by 1000. To change grams to kilograms, you divide by 1000. For fractions, remember a quarter of a kilogram is 250g, so three-quarters is 750g.

🎯 Exam Tip: Remember the key number for conversion between kilograms and grams is 1000. Always multiply when converting to a smaller unit and divide when converting to a larger unit.

Very Short Answer Type Questions

Question 1. How many gram in a \( 1\frac {1}{2} \) kg.?
Answer: To find out how many grams are in 1 and a half kilograms, first convert 1 kilogram to 1000 grams. Then, half a kilogram is 500 grams. Add these together to get 1500 grams. This is a practical skill for scaling recipes or understanding package labels.
In simple words: 1 kilogram is 1000 grams, and half a kilogram is 500 grams. So, 1 and a half kilograms is 1000 + 500 = 1500 grams.

🎯 Exam Tip: Break mixed units into whole and fractional parts, convert each to the target unit, and then sum them up.

Question 2. How many iron weight unit used to weigh 3 kg 350 gm.
Answer: To weigh 3 kilograms and 350 grams, you would use these iron weights: one 2 kg weight, one 1 kg weight, one 200 gram weight, one 100 gram weight, and one 50 gram weight. These add up to the total needed weight. This shows how we combine standard weights to achieve precise measurements, similar to balancing scales.
In simple words: You need 2 kg, 1 kg, 200 gram, 100 gram, and 50 gram weights to make a total of 3 kg 350 gm.

🎯 Exam Tip: Always aim to use the largest possible weight units first, then progressively smaller ones to reach the exact total.

Question 3. Out of the following which has weight less than 1 kg. ?
Answer: Based on general knowledge about the items shown (mango, drawing box, football, and book), all of them typically weigh less than 1 kilogram. It's useful to have a general sense of object weights in common units like kilograms to make estimations.
In simple words: A mango, a drawing box, a football, and a book usually weigh less than 1 kilogram.

🎯 Exam Tip: When asked to estimate weights, think about the average size and material of the objects to compare them to a known unit like 1 kg.

Short Answer Type Questions

Question 1. Convert 1 kilogram. 500 gram. weight into kilogram. unit.
Answer: To change 1 kilogram and 500 grams into only kilograms, first separate the kilograms and grams. Convert the 500 grams to kilograms by dividing by 1000, which gives \( \frac { 500 }{ 1000 } \) kg, or \( \frac {1}{2} \) kg. Then add this to the 1 kilogram you already have, making the total \( 1\frac {1}{2} \) kilograms. This conversion is useful when you need to express all weights in a single, consistent unit for calculations.
In simple words: 1 kilogram 500 grams is the same as 1 and a half kilograms, or \( 1\frac {1}{2} \) kg.

🎯 Exam Tip: Always remember that 1000 grams make 1 kilogram, so to convert grams to kilograms, divide by 1000.

Question 2. A family required 750 gram flour per day for food then how much flour required for one week?
Answer: If a family uses 750 grams of flour each day, to find out how much flour they need in one week, multiply the daily amount by 7 (because there are 7 days in a week). So, 750 grams multiplied by 7 equals 5250 grams. This can also be written as 5 kilograms and 250 grams. Calculating weekly consumption helps in planning grocery shopping and managing household supplies efficiently.
In simple words: Daily flour is 750g. For one week (7 days), it's 750g × 7 = 5250g. This is 5 kilograms and 250 grams.

🎯 Exam Tip: Make sure to clearly state the daily consumption and then multiply by the number of days for the total, finally converting to kilograms and grams if needed.

Question 3. Solve kg. gram 6 750 + 13 150
Answer: To solve this weight addition, add the grams first: 750 grams + 150 grams = 900 grams. Then, add the kilograms: 6 kg + 13 kg = 19 kg. So the total weight is 19 kilograms and 900 grams. Adding weights in different units like this is similar to adding time or currency, requiring careful handling of each unit separately.
In simple words: Add the grams (750 + 150 = 900) and then add the kilograms (6 + 13 = 19). The total is 19 kg 900 gram.

🎯 Exam Tip: Always add the smaller units (grams) first, and if they exceed 1000, convert and carry over to the larger unit (kilograms).

Question 4. Which iron weight units required to weight following weights
(1) 1 kg. 500 gram
(2) 2 kg. 250 gram
(3) 6 kg. 300 gram
(4) 4 kg. 750 gram
Answer:
(1) For 1 kg 500 gram: You need a 1 kg weight and a 500 gram weight.
(2) For 2 kg 250 gram: You need a 2 kg weight, a 200 gram weight, and a 50 gram weight.
(3) For 6 kg 300 gram: You need a 5 kg weight, a 1 kg weight, a 200 gram weight, and a 100 gram weight.
(4) For 4 kg 750 gram: You need two 2 kg weights, a 500 gram weight, a 200 gram weight, and a 50 gram weight. Using a combination of standard weights is how precise measurements are achieved in many real-world scenarios, like in a market.
In simple words: For each weight, break it down into standard iron weights like 5kg, 2kg, 1kg, 500g, 200g, 100g, and 50g to make the total.

🎯 Exam Tip: Break down the total weight into its largest possible standard components (e.g., 5kg, then 1kg, then 500g, etc.) for efficient weighing.