Question:The unit's digit in the product `(274 xx 318 xx 577 xx 313)` is : 

A 2 
B 3 
C 4 
D 5 

+ Answer
A 

+ Explanation
Required digit 
= unit digit in the product `(4 xx 8 xx 7 xx 3)` 
`= 2`

+ Report

Mohammad Towhidul Islam

Editor, VCampus

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