Question

A mosaic is 74 years older than the engraving. Thirty years ago,the mosaic was three years as old as engraving. Find the present age of each.​

Answer 1

Suppose engraving has age x

So mosaic age is x+74

Thirty years ago mosaic age was x+74- 30 which was thrice of engraving age 30 years ago

So x+44=3×(x-30)

So 2x =90+44=134

So x =67

So engraving age is 67

While of mosaic is 67+74=141