Question

please solve this question for me

Answer 1

Answer:

6. ( i )

A day has 24 hours. So half an hour on a whole day is:

0.5 hr / 24 hr

=> 0.5 / 24 = 1 / 48 ( or ) 0.0208

Percentage = 0.0208 × 100% = 2.08 %

( ii )

=> 3 / 4 m = 0.75 m

=> 4 ( 1 / 2 ) = 4.5 m

So percentage of 3 / 4 in 4 ( 1 / 2 ) is :

=> ( 0 .75 / 4.5 ) × 100

=> 16.67 %

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10.

Given that 43 % is girls. This means remaining 57 % is boys

So it is given that number of boys are 1482

=> 57 % = 1482 :: 43 % = ?

=> 43 × 1482 / 57

=> 43 × 26

=> 1118

Hence number of girls is 1118.

=> Total Strength = No of boys + No of girls

=> Total Strength = 1482 + 1118 = 2600

Hence there are 2600 students out of which 1118 students are girls.

Hope it helped !

Answer 2

6)

1) what percentage of a day is half an hour ?

1 day = 24 hours

1/2 hour = 0.5 .

So , 0.5/24 x 100 = 2.08 %.



2) what percentage is 3/4 of 4 1/2 m ?

3/4 = 0.75

4 1/2 = 9/2 = 4.5 m

So, 0.75/4.5 x 100 = 16.66 %

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10)

Given :

Percentage of girls = 43 %

Number of boys = 1482

1) Finding Total strength -

100 - 43 = 57 % .

Percentage of boys = 57 %

57 % = 1482 boys

43 % = ? girls

= 43 x 1482 / 57

= 1118.

Number of girls = 1118 .

Total strength = boys + girls

= 1482 + 1118

= 2600.

Total strength = 2600

2) Number of girls = 1118.