Question:A ball pen factory decided to reduce its production by `10%` over that of previous month for next `3` months starting from February `1994`. In January `1994`, it produced `3000` ball pens. How many ball pens were produced in March `1994` ? 

A `2700` 
B `2430` 
C `2187` 
D `2400` 

+ Answer
B 

+ Explanation
Required number 

`= 3000 xx (1 - (10)/(100))^2`

`= 3000 xx 9/(10) xx 9/(10)`

`= 2430`.

+ Report

Md. Habib Ullah

Editor, VCampus

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