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Answer 1 :
Given ;
1 quire = 25 sheets , thus ,
24 quires = 24 * 25 = 600 sheets
Thickness of 400 sheets of paper = 4.5 cm
Thickness of one sheet of paper = 4.5/400 cm
Thickness of 25 quires of sheet = (45/400) *600
= 13.5/2
= 6.75 cm
Thus , the thickness of 24 quires of sheets is 6.75cm .
Answer 2 :
1. 50 is increased to 54 :
Percentage change = (( n- f)/n) × 100 ,
where , n = initial value
f = final value
That is ,
= (54 - 50 / 50 ) * 100
= (4/50)*100
= 0.008 * 100
= 8%
2. 320 is decreased to 288 :
Percentage change = ((n - f)/n) × 100 , where ,
n = initial value
= ((320 - 288)/320) × 100
= (32/320) × 100
= 0.1 × 100
= 10 %
Answer 3 :
Your required answer is 128 .
[tex]3\frac{1}{8}[/tex] % x = 25/8 % x = 25 / 800 x
we know that 3(1/8) % is 4 , so ,
25 / 800 x = 4
x = 4 * 800 / 25
x = 128 .
THANKYOU !
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Verified answer
Answer 1 :
Given ;
1 quire = 25 sheets , thus ,
24 quires = 24 * 25 = 600 sheets
Thickness of 400 sheets of paper = 4.5 cm
Thickness of one sheet of paper = 4.5/400 cm
Thickness of 25 quires of sheet = (45/400) *600
= 13.5/2
= 6.75 cm
Thus , the thickness of 24 quires of sheets is 6.75cm .
Answer 2 :
1. 50 is increased to 54 :
Percentage change = (( n- f)/n) × 100 ,
where , n = initial value
f = final value
That is ,
= (54 - 50 / 50 ) * 100
= (4/50)*100
= 0.008 * 100
= 8%
2. 320 is decreased to 288 :
Percentage change = ((n - f)/n) × 100 , where ,
n = initial value
f = final value
= ((320 - 288)/320) × 100
= (32/320) × 100
= 0.1 × 100
= 10 %
Answer 3 :
Your required answer is 128 .
[tex]3\frac{1}{8}[/tex] % x = 25/8 % x = 25 / 800 x
we know that 3(1/8) % is 4 , so ,
25 / 800 x = 4
x = 4 * 800 / 25
x = 128 .
THANKYOU !