Question

If 4 : 3 = y : 9 then y = ?*​

Answer 1

Given :- If 4 : 3 = y : 9 then y = ?

Answer :-

we know that,

• a : b = c : d
• product of means = product of extremes .
• b * c = a * d

putting values we get,

→ 3 * y = 4 * 9

→ 3y = 36

→ y = 12 (Ans.)

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Answer 2

SOLUTION

TO CHOOSE THE CORRECT OPTION

If 4 : 3 = y : 9 then y = ?

1. 36

2. 27

3. 12

4. 0

EVALUATION

Here it is given that

4 : 3 = y : 9

$\displaystyle \sf{ \frac{4}{3} = \frac{y}{9} }$

$\displaystyle \sf{ \implies \: 3 \times y = 9 \times 4 }$

$\displaystyle \sf{ \implies \: 3y = 36 }$

$\displaystyle \sf{ \implies \: y = \frac{36}{3} }$

$\displaystyle \sf{ \implies \: y = 12 }$

FINAL ANSWER

Hence the correct option is 3. 12

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