Mr. RAHUL

TRILOK have 5 children.
Name of the person and number of his children are related by some pattern.
Assign each vowel following values.
A=0 E=1 I=2 O=3 U=4
The number of children to any person is the sum of the values represented by vowels in his name.
RATISH = 0(A) + 2(I) = 2
OM = 3(O) = 3
AMIT = 0(A) + 2(I) = 2
ASHOK = 0(A) + 3(O) = 3
TRILOK = 2(I) + 3(O) = 5
Hence, TRILOK have 5 children.