8.
Greatest five digit number that can be formed using 8,9,0,6,2 is _________.
18.
The length, breadth and height of a room are 6 m 30 cm, 2 m 0 cm, and 5 m 70 cm respectively. What is the length of the longest rod which can measure the dimensions of the room exactly?
20.
A mobile number consists of ten digits. First four digits are 9,9, 7 and 9. Make the smallest mobile number by using only one digit twice from 7, 2, 5, 8, 0.