7.
A mobile number consists of ten digits. The first four digits of the number are 9, 8, 8 and 7. The last three digits are 1, 5 and 5. The remaining digits are distinct and make the mobile number, the greatest possible number. What are these digits?
10.
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.
12.
In a city, one out of every 5 people is illiterate. If there are 82,20,270 men and 69,15,275 women in the city. How many people are literate?
15.
What should be added to 6, 37, 93, 210 to get 8, 89, 06, 972?