TCS Company Logical Reasoning Logical Sequences

What is the missing number in the following series?
64, ? , 98, 80, 126, 112, 96, 144, 126, 112, 162
option
(a) 88
(b) 106
(c) 108
(d) 86
(e) None of these

Read Solution (Total 4)

option (c)108 is right.
as 64,80,96,112 are in a group having the same difference of 16.
similarly 98,112,126 are in the same group having common difference of 14.
and also 126,144,162 are in the same group having common difference of 18 and the missing number also belongs to the same group having common difference of 18 and comes before 126 so the missing number is obviously 108...
10 years agoHelpfull: Yes(19) No(3)

check 4th-1st=16,8th-4th=16..144-126=162-144=18..so 126-?=18
ANS:108
10 years agoHelpfull: Yes(5) No(2)
ans--e>none of these...
10 years agoHelpfull: Yes(5) No(6)
108...... 44,,46,,48,,50
10 years agoHelpfull: Yes(0) No(0)

TCS Other Question

Five kg of ghee was bought by venu for Rs. 300. One kg was spoiled. He sells the remaining in such a way that on the whole he incurs a loss of 10%. At what price per kg does he sell the ghee?
option
(a) Rs. 67.50
(b) Rs. 60.50
(c) Rs. 56.00
(d) Rs. 67.00
(e) None of these
A man can row downstream at the rate of 36 meters per second and upstream at the rate of 5 kmph. Find the speed of current.
option
(a) 2.8 kmph
(b) 3 kmph
(c) 2.5 kmph
(e) None of these