TCS Company Logical Reasoning Logical Sequences

a company changes its 8 digit code once every month and is such that it adds a prefix and a suffix to the (6 digit to make it 8 digit ) code every month.. the last month code is 81783413. find the prefix and suffix of this month if the total code is divisble by 11 and 8
optns:
(9,6)
(1,9) ( i dnt remember the remaing)

Read Solution (Total 7)

TCS Other Question

A farmer has a farm and he wanted to cnstrct a fence in a straight path.. he planned in this way that the distance between consequent poles is 14 (with 1 and last pole fixed) and he bought some poles but found that they are 6 less than the poles he estimated before.
but he found that if he keeps the distance of 21 btween the poles then it would make his fence..
so how many poles he bought?
radha and usha together has some money. radha alone has 8 less than the together of them and usha has 4.5 less than the together of them. how much money ushha has?

my optn: 10.5 (i think its wrng..)