state true or false. please
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4
(1) Ratio of 3:4 Vs Ratio of 4:5
Multiply the ratio 3:4 by 5:5
3 × 5 : 4 × 5
==> 15 : 20
Multiply the ratio of 4:5 by 4:4
4 × 4 : 5 × 4
==> 16 : 20
Offcourse 16 : 20 > 15 : 20
Hence 4:5 > 3:4
TRUE
(2) 380 : 570
==> 190 × 2 : 190 × 3
==> 2 : 3
FALSE
(3) 10 rupees = 10×100 paise
==> 1000 paise
Ratio = 5 paise : 1000 paise
==> `1 : 200
TRUE
(4) a / b = 2 / 3 = 4 / 6
b / c = 6 / 8
Hence a / c = 4 / 8
==> 1 / 2
c / a = 2
FALSE
(5) a,b, and c are in continued proportion :
a / b = b / c
==> b² = ac
FALSE
Hope it helps :)
___________________________________________________________
Answered by
10
I)
Corresponding fraction: 4/5 and 3/4
Lcm of 4 and 5 = 20
Therefore 4:5 > 3:4
ii)
( explaination in attachment)
As they are not equivalent.
iii)
( explaination in attachment)
iv)
v)
Corresponding fraction: 4/5 and 3/4
Lcm of 4 and 5 = 20
Therefore 4:5 > 3:4
ii)
( explaination in attachment)
As they are not equivalent.
iii)
( explaination in attachment)
iv)
v)
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Sauron:
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