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Grade: 11
        
The sum of the value of the digit at the tens of all the number formed with the help of 3,4,5,6 taken all at time is
a)1080
b)4320
c)360
d)180
22 days ago

Answers : (2)

V S Pragalathan
18 Points
							
The tens of the numbers 3,4,5,6 are 30,40,50 and 60 respectively. Therefore, the sum of the tens will be :30+40+50+60=180.So,option(d) is the correct answer. 
22 days ago
Arun
15947 Points
							
Dear student
 
sum of digits in the ten’s place= 
 
(4-1)! (30+ 40 + 50+ 60)
 
= 1080
 
hope it helps
 
Regards
Arun (askIITians forum expert)
22 days ago
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