Question

materials used to build the qutb minar. pls no summary.

Answer 1

The first three storeys are made of red sandstone; the fourth and fifth storeys are of marble and sandstone.

Answer 2

Qutub Minar is a 73m high victory tower build by Qutab-ud-din Albak in 1193 for defeating the Delhi's last Hindu king.
It has 5 distinct storeys, each with a projecting balcony and tapers and has a base of 15m diameter and top is 2.5m.
Red sandstone is used to build the first three storeys and marble and sandstone are used to build the next two storeys.