LR & DI Marathon

From today on, I start a new initiative, I will post one DI set every day for you to solve and put up the answers the next day along with another DI set.

I will try to setup a way to send this directly to your e-mail inboxes. but till then you will need to check out this page for the DI set.

Here goes, the first DI set.

DI Set 1: (CAT 2004)

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 known 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.

1. How many Naya mixer-grinders were purchased in 1999?

a. 50
b. 44
c. 64

d. 55

2. How many Naya mixer-grinders were disposed off by the end of 2000?

a. 10
b. 22
c. 16
d. cannot be determined

3. How many Purana mixer-grinders were purchased in 1999?

a. 20
b. 50
c. 23
d. cannot be determined

4. How many Purana mixer-grinders were disposed off in 2000?

a. 6
b. 0
c. cannot be determined
d. 5

Get those brain cells working and wait up for the answers to be posted tomorrow!!

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