Question

1) There are 200 trees in archord. If 125 of them are apple trees. find the percent of apple trees.
2) There are 7000 students in the school out of which 420 are girls. find the percentage of boys in the school.​

Answer 1

$\huge\underline\mathrm{SOLUTION:-}$

Question 1:

AnsWer:

• The percentage of apple trees = $\mathsf {62\frac{1}{2}\%}$

Given:

• Number of trees = 200
• Number of apple trees = 125

Need To Find:

• Percentage of apple trees = ?

Explanation:

Now, according to the given question,

Percentage of apple trees = 125/200 × 100

➠ 125/2

➠ ${\boxed{\sf\green {62\frac{1}{2}\%}}}$

• Hence, the percentage of apple trees are $\mathsf {62\frac{1}{2}\%}$

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Question 2:

AnsWer:

• Percentage of boys = 40%.

Given:

• Number of students = 700
• Number of girls = 420
• Number of boys = (700 - 420) = 280

Need To Find:

• Percentage of boys = ?

Explanation:

Now, according to the given question,

Percentage of boys = 280/700 × 100

➠ 280/7

➠ ${\boxed{\sf\green{40\%}}}$

• Hence, the percentage of boys are 40%

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Answer 2

Solution :-

1 )

Given :-

• No. of total trees - 200 trees
• No. of apple trees - 125 trees

To find :-

• Percentage of apple trees = ?

Formula :-

• Percentage of apple trees =( No. of apple trees / Total no. of trees ) × 100 %

Answer :-

Percentage of apple trees = ( No. of apple trees / Total no. of trees) / 100 %

➡ Percentage of apple trees = ( 125 / 200 ) × 100 %

➡ Percentage of apple trees = 0.625 × 100 %

➡ Percentage of apple trees = 62.5 % .

Therefore, the percentage of no. of apple trees is 62.5 % .

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Note :-

◆ 125 / 200

=> First cut each with 5

=> 25 / 40 will come

=> Again cut with 5

=> 5 / 8 will come

=> 0.625 will come after dividing

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2 )

Given :-

• No. of total students = 7000
• No. of girls = 420

To find :-

Percentage of boys = ?

Formula :-

Percentage of boys =( No. of boys / Total no. of students) × 100 %

Answer :-

No. of boys = Total number of students - No. of girls

➡ No. of boys = 7000 - 420

➡ No. of boys = 6580 .

Percentage of boys = ( No. of boys / Total no. of students ) / 100 %

➡ Percentage of boys = ( 6580 / 7000 ) × 100 %

➡ Percentage of boys = 0.94 × 100 %

➡ Percentage of boys = 94 %

Therefore, the percentage of no. of boys is 94 % .

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Note :-

◆ 6580 / 7000

=>Cut 6580 and 7000 with 10

=> 658 / 700 will come

=> Again cut 658 and 700 with 7

=> 94 / 100 will come

=> 94/100 = 0.94

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