Question

Q2. If x:y= 5:4 and x+y = 135, find 'y'?

Aj 75
B] 60
C) 50
D] 90​

Answer 1

Answer:

the value of y is 76

Step-by-step explanation:

as per the given data in the question, we have given ratio between two numbers x and y and we need to find y.

in ratio, we cancel out two numbers with a same factor and the remaining numbers having no common factors is the ratio between the numbers.

the ratio between x any y is expressed as x:y

and according to the question,

x:y = 5:4

let the common factor between them is m

so x= 5m

and y= 4m

and in the question, the sum of the two numbers x and y is given as 135

⇒x + y =135

now we will substitute the values in this equation,

we get,

5m+4m=135

⇒ 9m=135

⇒m= 19

so on multiplying m=19 in order to find the values of x and y

we get,

x = 5 x 19 = 95

y = 4 x 19 = 76

hence, we needed to find the value of y and it comes out to be 76

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Answer 2

The value of y=60

Step-by-step explanation:

According to the given information,

x:y= 5:4

x= 5k

y= 4k

x+y= 135

5k+4k=135  

9k=135

k=135/9=15

So, x=5×k= 5×15=75

y= 4×k=4×15=60

So, the value of y is 60.

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