Question

A new colony was built and the builder gave contract to a sign maker to number the buildings from Number 1 to 500.How many zeroes will he need?

Answer 1

zeroes from. 1-100=10
zeroes from 101-200= 10
zeroes from 201-300=10
zeroes from 301-400=10
zeroes frim 401-500=10
total zeroes =10×5=50