WBCS Exe. Prelims 2017 Prev. Yr. Paper

Five boys are sitting in a row. Kajol is sitting in between Piyush and Paresh while Gogol is sitting in between Ronnie and Piyush. Who is sitting at the extreme right of Gogol?

Five boys are so standing that they form a circle. Rahim is between Ajoy and Tom. Salman is to the left of Bablu and Ajoy is to the right of Salman. Who is at the right of Bablu?

If $a\ast b=ab+b-a$, what is the value of $c$ such that $c\ast (2\ast 5)=97$?

If $a÷b$ means 'a to be added to b' and $a\times b$ means 'a to be divided by b', then the value of $(14÷7)÷(14\times 7)$ is:

Choose the odd one from the following options: