# If a + b = 10 and a – b = 20, then what will be the value of a/b?

If a + b = 10 and a – b = 20, then what will be the value of a/b?

Please help me .

Thanks for your questions, Your question is –

**If a + b = 10 and a – b = 20, then what will be the value of a/b?**

Here I’m trying to explain the details. Hope you will be clear your question from my explanation –

**Explanation:**

According to the data given in the question,

a + b =10 ———–i

a – b = 20———–ii

On adding equations I and ii we get,

2a = 30

∴ a = 15

Substituting the value of ‘a’ in equation I we get,

15 + b = 10

∴ b = 10 – 15

∴ b = -5

Hence we have the values of ‘a’ and ‘b’ as a = 15 and b = -5

Now, we have to find out the value of a/b

∴ a/b = 15/-5

∴a/b = 3/-1 = -3

**Answer= -3**