Question

1. I am a multiple of 70. I am between 300 and 500. I am 20 more than a multiple of 100. Who am I?

Answer 1

The answer is 420.

Reason:-

The multiple of 70 lies between 300-500 has three possibilities such as 350,420,490.

Now from second clue

x+20= (multiple of 100)

So apply the the values

☞︎︎︎400+20 =420.