Fill in the blank with suitable figures. S 16 10 V L 28 20 P F __ __ J

Concept: In an alphanumeric series, each letter's position in the alphabet (A = 1 to Z = 26) is used to build a numeric pattern. Here the two flanking letters of each row form two independent letter-chains (one running down the left-hand letters, one down the right-hand letters); moving from one letter in a chain to the next, the count of letters strictly skipped in between, doubled, is added to the previous number in that same chain to get the next number.

Application:

1. Left-hand chain (S to L to F): from S to L, the letters skipped in between are R, Q, P, O, N, M — 6 letters; 6 x 2 = 12, and 12 + 16 = 28, which matches the second row's first number.

2. Continuing the same chain from L to F: the letters skipped are K, J, I, H, G — 5 letters; 5 x 2 = 10, and 10 + 28 = 38. So the first blank is 38.

3. Right-hand chain (V to P to J): from V to P, the letters skipped in between are U, T, S, R, Q — 5 letters; 5 x 2 = 10, and 10 + 10 = 20, which matches the second row's second number.

4. Continuing the same chain from P to J: the letters skipped are O, N, M, L, K — 5 letters; 5 x 2 = 10, and 10 + 20 = 30. So the second blank is 30.

Cross-check:

The step added to each chain equals exactly twice the count of skipped letters at every stage: 12 then 10 in the left-hand chain, and 10 then 10 in the right-hand chain — both chains stay internally consistent, confirming 38 and 30 without contradiction.

So the blanks are 38 and 30.