Question

If 1=5,2=10,3=15,4=10 what does 5 =?

Answer 1

Answer -

5 = 5

Explanation - As given all the multiples of 5 and it is in increasing order like 1=5,2=10,3=15 and after 3 its in decreasing i.e. 4 = 10 so 5 = 5 

Answer 2

Here's the answer

If we look at the question in a very keen way,
the answer to the question is very easy

The logic used is such that,

1 = 5 , { 1 × 5 = 5 }

Here, if we multiply first number by 5 ,we get second number

Similarly,
2 = 10 , { 2 × 5 = 10 }

Here also, multiply first number by 5 to get the second number.

But,

The same logic can't be used as we have to find 5 = ?

As given in the question,

1 = 5, We can simply write the answer as 5 = 1.

Thus,
5 = 1

Thanks!