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There are 12 towns grouped into four zones with three towns per zone. It is intended to connect the towns with telephone lines such that every two towns are connected with three direct lines if they belong to the same zone, and with only one direct line otherwise. How many direct telephone lines are required?

Why does it say that it's the last day to take the Dashcat-12? Can I not take it any given time?

is there any time or date restrictions on taking the mock tests or can i take it at any point of my preparation??

10 years ago, the ages of members of a joint family of eight people added upto 231 years. 3years later, one member died at age 60 and a child was born same year. After another 3 years, one member died at age 60 and again a child was born same year. Find the current average of this 8 membered family.

23,21,25,24,22
Cat-2007

I am preparing for cat 2019. But i have no base in subject. What i can do to crack cat exam

From where i can access the course i bought from Cracku for mock test worth 799?

Orissa was conferred the GI tag for rasgulla .
Bengal also has one.
So where did it actually originate among two ?

can I buy logical series only ?

The smallest prime number that is the fifth term of an increasing arithmetic sequence in which all the four proceding terms are also prime is