6.
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.
10.
What should be added to 6, 37, 93, 210 to get 8, 89, 06, 972?
11.
Write the smallest and the largest seven digit numbers that you can form using the digits: 6, 2, 3, 7, 0, 9 and 5, without repeating the digits.
16.
Along a highway, there are teak tree on one side of the highway and neem on the other side. The teak trees are separated by 10 m and the neem trees are separated by 36 m. If an teak and a neem trees are both present at the point where the highway begins, after how much distance along the highway will they both be in front of each other again?
18.
The population of a city was 2,638,373 in 2002. Rounded off to nearest thousands, the population was ___.