Question

The LCM of two numbers is 280 and there ratio is 7:8. then two numbers are

Answer 1

Answer:

The sum of the two numbers is 85.

Step-by-step explanation:

Given : LCM of two number is 280 and their ratio is 7:8.

To find : The sum of the two numbers ?

Solution :

Let the ratio be 'x'.

Let the two numbers are 7x and 8x.

The HCF of the two number is x as the common factor is x.

The LCM of two number is 280.

We know,  

Product of two number=HCF×LCM

7x×8x=280×x

56$x^{2}$=280x

x=280/56

∴x=5

So, The required numbers are

7x=7×5=35

8x=8×5=40

So, The sum of two numbers is 35+40=85

Therefore, The sum of the two numbers is 85.

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Answer 2

Answer:

the answer is 85

Step-by-step explanation:

hope it help you