CAT Question 150
Purana and Naya are two brands of kitchen mixer-grinders available in the local market. Purana is an old brand that was introduced in 1990, while Naya was introduced in 1997. For both these brands, 20% of the mixer-grinders bought in a particular year are disposed off as junk exactly two years later. It is knows that 10 Purana mixer-grinders were disposed off in 1997. The following figures show the number of Purana and Naya mixer-grinders in operation from 1995 to 2000, as at the end of the year.

Q.1. How many Naya mixer-grinders were purchased in 1999?
1. 44
2. 50
3. 55
4. 64
Q.2. How many Naya mixer-grinders were disposed off by the end of 2000?
1. 10
2. 16
3. 22
4. Cannot be determined from the data
Q.3. How many Purana mixer-grinders were disposed off in 2000?
1. 0
2. 5
3. 6
4. Cannot be determined from the data
Q.4. How many Purana mixer-grinders were purchased in 1999?
1. 20
2. 23
3. 50
4. Cannot be determined from the data