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-grinder disposed off by end of 2000 ?
A. 10
B. 15
C. 22
D. Cannot determined
Answer: Option B
Solution(By Examveda Team)
In the year 1998, (75 - 25) = 50 mixer-grinder purchased. Then, In 2000, 20% of 50 disposed off = 10. Similarly, number of mixer grinder purchased in 1997 is 25. Number of mixer-grinder disposed in 1999 = 20% of 25 = 5. Total number of mixer-grinder disposed off at end of 2000= 10 + 5
= 15
This Question Belongs to Data Interpretation >> Bar Chart
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