Question

The number of students in a class 20 minutes ago was 729. If the number of students joining the class triples
every 10 minutes. What is the cube root of the number of students joining after 40 minutes from now?​

Answer 1

→ 25×40=1000kg

→1kg= 2750÷1000=2.750rs.

→45×36=1620kg

→=1620×2.75

→=4455rs

hope it helps