7T19, 9Q16, 11N13, 13K10, 15H7, _______ missing letters question pls answer in explain
Answers
Answer:
17E4
Step-by-step explanation:
Given series is 7T19, 9Q16, 11N13, 13K10, 15H7, ___. We need to find out the missing one.
Firstly divide the series into number, letter and again number.
→ 7 T 19
→ 9 Q 16
→ 11 N 13
→ 13 K 10
→ 15 H 7
In the first series numbers are 7, 9, 11, 13 and 15. In every number 2 is added.
7 + 2 = 9, 9 + 2 = 11, 11 + 2 = 13, 13 + 2 = 15
So, 15 + 2 = 17
In second series letters are T, Q, N, K and H. 3 is substrated from every letter.
T - 3 = Q, Q - 3 = N, N - 3 = K, K - 3 = H
So, H - 3 = E
Now, in third series numbers are 19, 16, 13, 10 and 7. Subtract 3 in each number to get the next number.
19 - 3 = 16, 16 - 3 = 13, 13 - 3 = 10, 10 - 3 = 7
So, 7 - 3 = 4
Therefore, the missing number and letter is 17E4.