TCS
Company
Category
28. 9+99+999+9999+............+ up to 23 terms find the last 3 digits of the sum.
Read Solution (Total 2)
-
- Ans 087
23*9=207 carry 20
22*9=198+20=218 carry 21
21*9=189+21=210
take last digits of the calculation
ans is 087 - 9 years agoHelpfull: Yes(13) No(2)
- explain clearly pls.....
- 9 years agoHelpfull: Yes(0) No(0)
TCS Other Question
Set A {1,3,10,17,19}, B{9,12,15,18,21} and set C{4,7,10,13,16,19} probability of a num from A+ a num from B > a num from C. (not sure about numbers)(it is a star mark qn)
29. 3 dies are rolled probability of getting a sum of 10