TCS Company

One day Snow-white meets Pal and Unicorn in the Fairyland. She knows the Pal lies on Mondays, Tuesdays and Wednesdays, and tells the truth on the other days of the week. Unicorn, on the other hand, lies on Thursdays, Fridays and Saturdays, but tells the truth on the other days of the week. Now they make the following statements to Snow-white – Pal: Yesterday was one of those days when I lie. Unicorn: Yesterday was one of those days when I lie too. What day is it?

Read Solution (Total 3)

TCS Other Question

A toy train can make 10 sounds sound changes aftr every 4 min, now train is defective and can make only 2 sounds. Find probability that same sound is repeated 3 times consecutively(1 out of)?

A lady has 100 addressed envelopes for 100 letters.She puts one letter in each envelope.
What is the probability that 1 letter is in improper envelope?