CAT Exam

The sum of the house numbers less than mine in my street is equal to the sum of the house numbers which are greater than mine.

My house number happens to comprise four digits. What is it?

Read Solution (Total 3)

your house number is 1189 in total houses numbered 1681.

other possible number is 6939 in 9800 houses.

only you can decide ur house number now. :-)
11 years agoHelpfull: Yes(3) No(3)

plz explain
11 years agoHelpfull: Yes(0) No(0)
ur house number = sqrt( (n*(n+1))/2 ) where n is the total number of houses
11 years agoHelpfull: Yes(0) No(1)

CAT Other Question

In a rectangle the difference between the sum of the adjacent side and the diagonal is half the length of the longer side. What is the ratio of shorter to the longer side ? A group of 630 children is arranged in a rows. Each row contains three fewer children than the row in front of it.What number of rows is not possible ?
A)3 B)4 C)5 D)6 E)7