Here’s the step-by-step solution to each of the 5 decimal word problems:
---
Q1. The weight of one box is 50.35 Kg. How much will be the weight of 23 such boxes?
✔ Solution:
To find the total weight of 23 boxes, multiply the weight of one box by 23.
> 50.35 × 23
Let’s compute:
```
50.35
× 23
--------
151.05 ← 50.35 × 3
+1007.00 ← 50.35 × 20 (shifted one place left)
--------
1158.05
```
✔ Answer: 1158.05 Kg
---
Q2. A car travels 280.54 Km in 5 hours. How much distance will it travel in one hour?
✔ Solution:
This is asking for the average speed per hour → divide total distance by total time.
> 280.54 ÷ 5
Let’s compute:
```
280.54 ÷ 5 = 56.108
```
✔ Answer: 56.108 Km per hour
---
Q3. A spool of thread measures 85.80 m. If 42.88 m thread is cut off, what length of the thread is left out?
✔ Solution:
Subtract the cut-off length from the original length.
> 85.80 - 42.88
Align decimals:
```
85.80
- 42.88
-------
42.92
```
✔ Answer: 42.92 m
---
Q4. Ayaan took 5.25 minutes to finish the race and Bhavisha took 5.20 minutes to finish the race. Who won the race and by how much?
✔ Solution:
In racing, the person who takes
less time wins.
Compare:
Ayaan = 5.25 min
Bhavisha = 5.20 min →
less time → winner
Difference = 5.25 - 5.20 = 0.05 minutes
✔ Answer: Bhavisha won the race by 0.05 minutes
*(You could also say “by 3 seconds”, since 0.05 × 60 = 3 seconds — but the question asks for decimal minutes, so 0.05 min is fine.)*
---
Q5. Aman scored 447.5 marks out of 500 in the final examination. How many marks did he loose?
✔ Solution:
Marks lost = Total possible marks – Marks obtained
> 500 - 447.5 = 52.5
✔ Answer: 52.5 marks
---
##
✔ Final Answers Summary:
-
Q1: 1158.05 Kg
-
Q2: 56.108 Km/hour
-
Q3: 42.92 m
-
Q4: Bhavisha won by 0.05 minutes
-
Q5: 52.5 marks
Let me know if you’d like these explained with diagrams or visual steps!
Parent Tip: Review the logic above to help your child master the concept of word problems with decimals worksheet.
