Verbal Reasoning - Mental Ability Questions

Let Priyatham's age = x

Then, Vishal's age = 2x; Raghu's age = x/2; Veeru's age = 4x ; Karthik's age = x/4

So, the descending order of ages is :

Veeru > Vishal > Priyatham > Raghu > Karthik

Therefore,  Karthik is the youngest.

Letters in the word                          Letters in the alphabet

SEQ                                                      SRQ

QUEN                                                  QPON

SEQUEN                                               SRQPO

ENTIA                                                  EDCBA 

The path traced by planet is called Orbit. Similarly, the path traced by projectile is called Trajectory.

Hence, Planet : Orbit : : Projectile : Trajectory.

Each term in the series is obtained by subtracting from the preceding term the number formed by the first three digits of preceding term
So,missing term is 4983-498=4485

Brother

Justification: Daughter of uncle's father -- Uncle's sister -- Mother;
Mother's son -- Brother.

Letters in the word                     Letters in the alphabet

      LEMO                                            LMNO