Directions (1 - 3): Purana and Naya two brand of mixer-grinder available in the market. Purana was introduced in 1990 and Naya was introduced in 1997. For both brands, 20% of the mixer-grinder bought in a particular year are disposed off as junk exactly two year later. It is known that 10 Purana mixer-grinder were disposed off in 1997. The following chart show the operation from 1995 to 2000, as at end of the year.
How many Naya mixer-grinders were purchased in 1999?
A. 45
B. 50
C. 55
D. 64
Answer: Option B
Solution(By Examveda Team)
It is given that 20% of the mixer-grinders are disposed off after 2 years.There for in 1999, 5 mixer-grinder disposed off (20% of 25).
Also the number of mixer grinder in circulation in 1999 was 120 and 1998 was 75. The difference is 45.
The total number of mixer-grinder purchased is (45 + 5) = 50
This Question Belongs to Data Interpretation >> Bar Chart
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