Question

2. 60% of the 4480 students in a school are girls. How many girls are there
school?
WOR
3. Bikram has read 45% of a Harry Potter book with 680 pages.
How many pages are left to be read?
LXAM
4. Jatin scored 570 marks out of 600. What is the percentage of marks score
5. John spent * 5600 out of 10,000. He purchased a watch as a gift
for his grandfather. What percentage of money did he spend?
6. Find the percentage of water in a person weighing 45 kg, if the
human body consists of of water by weight.
3
3
of the household work is done by my mother. What per cent of the
4
household work is done by her?
7.
ΧΑ
AVERAGE
ny​

Answer 1

Answer:

2688

Step-by-step explanation:

2.Total students: 4480

60% of the students are girls,

No. of girls in the school are= 60/100×4480=2688

Answer 2

Tip:

• A percent is equal to the ratio of a part to a whole.

Step 1 of 5:

2.) Given,

$60\%$ of the $4480$ students in a school are girls.

Number of girls in this school $=x$

∴   $x=60\%\times 4480\\\\x=\frac{60}{100}\times 4480\\\\x=6\times 448\\\\x=2668$

The number of girls in school are $2668$

Step 2 of 5:

3.) Given,

Bikram has read $45\%$ of a Harry Potter book with $680$ pages.

Let the number of pages he read $=x$

∴$x=45\%\times 680\\\\x=\frac{45}{100}\times680\\\\x=306$

The number of pages left to be read $=$ Total number of pages - Number of pages read

The number of pages left to be read $=680-306$

                                                             $=374$

Step 3 of 5:

4.) Jatin scored $570$ marks out of $600$ .

The percentage of marks score $=\frac{570}{600}\times 100$

                                                     $=95\%$

Step 4 of 5:

5.) Given,

John spent $5600$ out of $10,000$. He purchased a watch as a gift for his grandmother .

The percentage of money he spent $=\frac{5600}{10,000}\times 100$

                                                           $=56\%$