Question

plzzzzzz help me... ​

Answer 1

$\large\underline{\purple{\sf \orange{\bigstar}Given:-}}$

Ratio of boys: Girls = 5:6

25% boys will get scholarship

20% girls will get scholarship

━━━━━━━━━━━━━━━━━━

$\large\underline{\blue{\sf \pink{\bigstar}Need.to.find:-}}$

How many won't get scholarship?

━━━━━━━━━━━━━━━━━━

$\large\underline{\red{\sf \green{\bigstar}Solution:-}}$

Let,

Number of boys be 5x and

Number of girls be 6x.

Then total number of students = 5x+ 6x= 11x.

━━━━━━━━━━━━━━━━━━

Now,

Boys who won't get scholarship:

=100% - 25%

= 75% of the total of boys

━━━━━━━━━

We know total number of boys = 11x

75 % of 5x

= 75/100 × 5x

=75/ 20x

=$\purple{\bold{ \dfrac{15}{4} x}}$

━━━━━━━━━━━━━━━━━━

Girls who didn't get scholarship:

=100% - 20%

= 80% of total girls

━━━━━━━━━

80% of 6x

= 80/100 × 6x

= 4/5 × 6x

=$\purple{\bold{\dfrac{ 24}{5}x}}$

━━━━━━━━━━━━━━━━━━

Total students who didn't get scholarship:

=15/4 x + 24/5 x

= $\purple{\bold{\dfrac{ 171}{20}x}}$

━━━━━━━━━━━━━━━━━━

% of students who didn't get scholarship

$\orange{\boxed{ = \dfrac{numer \: of \:nonscholar\: students }{total \: students} \times 100}}$

$= \dfrac{ \dfrac{171}{20} x}{11x} \times 100$

=$\red{\bold{\large{\boxed{77.727 \%}}}}$

Answer 2

$\large\underline{\blue{\sf \orange{\bigstar}Given:-}}$

Ratio of boys: Girls = 5:6

25% boys will get scholarship

20% girls will get scholarship

━━━━━━━━━━━━━━━━━━

$\large\underline{\blue{\sf \green{\bigstar}Need.to.find:-}}$

How many won't get scholarship?

━━━━━━━━━━━━━━━━━━

$\large\underline{\red{\sf \purple{\bigstar}Solution:-}}$

Let,

Number of boys be 5x and

Number of girls be 6x.

Then total number of students = 5x+ 6x= 11x.

━━━━━━━━━━━━━━━━━━

Now,

Boys who won't get scholarship:

=100% - 25%

= 75% of the total of boys

━━━━━━━━━

We know total number of boys = 11x

75 % of 5x

= 75/100 × 5x

=75/ 20x

=$\green{\bold{ \dfrac{15}{4} x}}$

━━━━━━━━━━━━━━━━━━

Girls who didn't get scholarship:

=100% - 20%

= 80% of total girls

━━━━━━━━━

80% of 6x

= 80/100 × 6x

= 4/5 × 6x

=$\blue{\bold{\dfrac{ 24}{5}x}}$

━━━━━━━━━━━━━━━━━━

Total students who didn't get scholarship:

=15/4 x + 24/5 x

= $\red{\bold{\dfrac{ 171}{20}x}}$

━━━━━━━━━━━━━━━━━━

% of students who didn't get scholarship

$\pink{\boxed{ = \dfrac{numer \: of \:nonscholar\: students }{total \: students} \times 100}}$

$= \dfrac{ \dfrac{171}{20} x}{11x} \times 100$

=$\green{\bold{\large{\boxed{77.727 \%}}}}$