Ravi Raja

Prof. Mukhopadhay works only on Mondays, Tuesdays, Wednesdays, Fridays, and Saturdays. She performs four different activities – lecturing, ...

There are exactly ten stores and no other buildings on a straight street. On the northern side of the street, from West to East, are stores...

Six square states having equal area in a country are located in North – South direction in two columns next to each other. States are locat...

A, B, C, D, E and F are a group of friends from a club. There are two housewives, one lecturer, one architect, one accountant and one la...

Each digit, 1, 2, 3, 4, 5, 6, 7, 8 and 9 is represented by a different letter A, B, C, D, E, F, G, H and I but not necessarily in this o...

A survey is conducted in a school among 150 students and it was found that 100 students play cricket, 90 students play football and 80 ...

Prove or Disprove: There exists some power of 3 which ends in 001.