UP Police Constable Exam Model Paper 5

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Question : 96 of 150

Marks: +1, -0

If

{a}: {b}=5: 9, {c}: {b}=3: 4

, then what is the value of

{a}: {c}

?

$5: 12$
$12: 5$
$20: 27$
$5: 3$

Solution:

GIVEN:

a: b=5: 9

c: b=3: 4

FORMULAE USED:

a: c=(a: b):(c: b)

CALCULATION:
Here,

a: c=(5: 9):(3: 4)

⇒ a: c=(5 × 4):(9 × 3)

⇒ a: c=20: 27

∴

The value of a :

c=20: 27

.

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