TCS Company Logical Reasoning Number Series

The addition 641 + 852 + 973 = 2456 is incorrect. What is the largest digit that can be changed to make the addition correct?

Read Solution (Total 6)

in 973 7 must be relaced with 6 so the sum becomes correct ie.461+852+963=2456
11 years agoHelpfull: Yes(15) No(1)

641+852+973=2466
difference is 10.so largest digit in 10's place is 7,so we change 7 as 6.
ANSWER IS 7
11 years agoHelpfull: Yes(10) No(0)
in 973, 7 is replaced by 6.
so 641+852+963=2456
11 years agoHelpfull: Yes(2) No(0)
9 is the answer
11 years agoHelpfull: Yes(0) No(7)
5 since addition is 2466
11 years agoHelpfull: Yes(0) No(2)
in 973,the 7 is replaced by 6
so,641+852+963=2456
11 years agoHelpfull: Yes(0) No(0)

TCS Other Question

When numbers are written in base b, we have 15*22 = 414, the value of b is Pradeep starts from a point A and walks on a road towards B. Revanath starts a little later also from A, and covers a distance of 9 km to catch up with Pradeep. If Revanth had waited till Pradeep had covered 4 km more before starting from A, he would need to cover 21 km to catch up with Pradeep. When Revanth reaches B, which is actually at a distance of only 18 km from A, how many kilometers from B is Pradeep?
option
a) 2
b) 3
c) 2.5
d) 3.5