A tiger walks in a straight line leaving footprints. In the first row it leaves 1 footprint, in the second row 2 footprints, in the third row 3 footprints, and this continues up to the 7th row. How many footprints are there in total?

Step-by-step solution

1. Add all numbers from 1 to 7 one by one.
2. $1+2=3$
3. $3+3=6$
4. $6+4=10$
5. $10+5=15$
6. $15+6=21$
7. $21+7=28$

Concept tested: Counting footprints in a row pattern

Published 7 October 2026 · How this solution was prepared and checked