16.
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?
19.
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?