Word Problems: Percentages | Mathematics for Class 5 PDF Download

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Q1: 10% of the books in a public library are Science books. If there are 90,000 books in the library, find the number of Science books available?

Ans: Total number of books = 90000
10% of books are science therefore, 10/100 × 90,000 = 9000
So, Total Number of Science Books available in the library are 9000.

Q2: David took a math test and got 25 correct and 15 incorrect answers. What was the percentage of correct answers?

Ans: Total Answers = 25 + 15 = 40
Percentage of Correct Answers = 25/40 × 100 = 2500/40 = 62.5%
Therefore, David got 62.5% of correct answers.

Q3: A metal bar weighs 7 Kg. 93% of the bar is Silver. How many Kgs of silver is there in the bar?

Ans: 93% of the bar is silver
= 93% of 7kg
= 93/100 × 7
= 651/100
= 6.51 Kg
Therefore,  6.51 Kg of Silver is there in the bar.

Q4: A man had ₹4,50,000 worth of property. He left 50% of his property to his son. How much did his son get?

Ans: Total Property worth = ₹4, 50, 000
Property his son got = 50% of 4, 50, 000
= 50/100 × 4, 50, 000 = 2,25,000
Therefore, the son got ₹2, 25, 000.

Q5: An alloy contains 24 % of copper. What quantity of alloy is required to get 280 g of copper?

Ans: Let the quantity of copper needed = m
24% of m = 280g
24/100 × m = 280
m = (280 × 100)/24 = 1166.66 gms
The Quantity of Alloy Required to get 280g of Copper is 1166.66 gms.

Q6: A baseball pitcher won 70% of the games he pitched. If he pitched 40 ballgames, how many games did he win?

Ans: Total games pitched = 40

Winning percentage = 70%

To find the number of games won:

$Games won=\frac{70}{100}\times 40\backslash text\{Games\; won\}\; =\; \backslash frac\{70\}\{100\}\; \backslash times\; 40$ =28
The pitcher won 28 games.

Q7: There are 45 Carpenters in a Crew. On a certain day, 27 were present. What Percent showed up for work?

Ans: Percentage of Carpenters Showed up for work = (27/45) × 100
= 2700/45
= 60%
Therefore, 60% of Carpenters Showed up for Work.

Q8: A packet contained 540 chocolates. 55% of the Chocolates were distributed to the children. Calculate how many chocolates are distributed?

Ans: No. of Chocolates distributed = 55% of 540
= 55/100 × 540
= 29700/100
= 297
297 Chocolates are distributed.

Q9: In an Exam Asha secured 300 marks. If she secured 75 % marks, find the maximum marks?

Ans: Asha secured 300 marks
Let the Maximum Marks be m 
75% of m = 300 
(75/100) × m = 300
m = (300 × 100)/75 = 400
The maximum marks in the Exam are 400.

Q10: Geetha scores 60 marks out of 80 in her Maths exam. Convert her Marks into Percent?

Ans: Percent of Marks Geetha got = (60/80) × 100
= 6000/80
= 75%