The solved examples on percentage will help us to understand how to solve step-by-step different types of percentage problems. Now we will apply the concept of percentage to solve various real-life examples on percentage.

Solved examples on percentage:

**1.** In an election, candidate A got 75% of the total valid votes. If 15% of the total votes were declared invalid and the total numbers of votes is 560000, find the number of valid vote polled in favour of candidate.

**Solution:**

Total number of invalid votes = 15 % of 560000

= 15/100 × 560000

= 8400000/100

= 84000

Total number of valid votes 560000 – 84000 = 476000

Percentage of
votes polled in favour of candidate A = 75 %

Therefore, the
number of valid votes polled in favour of candidate A = 75 % of 476000

= 75/100 × 476000

= 35700000/100

= 357000

**2.** A shopkeeper
bought 600 oranges and 400 bananas. He found 15% of oranges and 8% of bananas
were rotten. Find the percentage of fruits in good condition.

**Solution:
**

Total number of fruits shopkeeper bought = 600 + 400 = 1000

Number of rotten oranges = 15% of 600

= 15/100 × 600

= 9000/100

= 90

Number of rotten bananas = 8% of 400

= 8/100 × 400

= 3200/100

= 32

Therefore, total number of rotten fruits = 90 + 32 = 122

Therefore Number of fruits in good
condition = 1000 - 122 = 878

Therefore Percentage of fruits in good condition = (878/1000 × 100)%

= (87800/1000)%

= 87.8%

**3.** Aaron had $ 2100 left after spending 30 % of the money he took for
shopping. How much money did he take along with him?

**Solution: **

Let the money he took for shopping be m.

Money he spent = 30 % of m

= 30/100 × m

= 3/10 m

Money left with him = m – 3/10 m = (10m – 3m)/10 = 7m/10

But money left with him = $ 2100

Therefore 7m/10 = $ 2100

m = $ 2100× 10/7

m = $ 21000/7

m = $ 3000

Therefore, the money he took for shopping is $ 3000.

Percentage of the given Quantity

How much Percentage One Quantity is of Another?

Real Life Problems on Percentage

**8th Grade Math Practice**

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