From the given alternative words, select the word which cannot be formed using the letters of the given word:
ADMINISTRATION

Two years ago, Aadhya was three times as old as his son and two years hence, twice her age will be equal to five times that of her son. Find Aadhya's present age.

Introducing a lady, a lady said, "She is the only daughter of Mohan's grandfather who is my husband's father". How does the lady relate herself with the introduced lad

Which one number when placed at the sign of interrogation shall complete the series
3, 6, 18, 72, ...?..., 2160

Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
g f e _ i g_e i i _f e i_g f _i i

Arrange the following words as per order in the dicitonary
1) Pearl 2) Peasant 3) Pea 4) Peanut