Digital Electronics

Digital Electronics

Postby vip007s » Thu Sep 27, 2012 9:39 pm

How to solve such questions?
What is the basic concept behind it?

Que. The base of the number system for the addition operation 24+14=41 to be true is:

A. 8
B. 7
C. 6
D. 5
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Re: Digital Electronics

Postby ck_gagan » Sat Sep 29, 2012 4:30 pm

vip007s wrote:How to solve such questions?
What is the basic concept behind it?

Que. The base of the number system for the addition operation 24+14=41 to be true is:

A. 8
B. 7
C. 6
D. 5


Use the number system with Radix or base 7. i.e System which includes digits 0 1 2 3 4 5 6. SO Option B is correct.


Thanks

C K Mishra
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Digital Electronics

Postby vip007s » Sat Sep 29, 2012 7:20 pm

Sir didn't got you..
Whether you saying hit & trial or expansion of those numbers using 7 as base?
How could we know amongst the 4 options which is to be used?
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Re: Digital Electronics

Postby sameer2009 » Mon Oct 01, 2012 10:33 am

vip007s wrote:How to solve such questions?
What is the basic concept behind it?

Que. The base of the number system for the addition operation 24+14=41 to be true is:

A. 8
B. 7
C. 6
D. 5


....2.....4
+
....1.....4
-------------
...........8 (by normal addition of unit places we get 8, but in answer its 1, so if we take base 7 then 8%7 = 1)
...........1 (also 1 carry to tens place)
.....4.....1 (the required answer)
so base 7
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