Question

TO 5 is related to YT 25 in a certain way. In the same way, IT 7 is related to NY 49. To which of the following is ON 9 related, following the same logic?

• A. TS 81
• B. JI 27
• C. TS 27
• D. JI 81

Answer 1

Answer:

A. TS 81

Following the established logic, ON 9 is related to TS 81.

The pattern splits each element into two rules—one for the letters and one for the numbers.

Rule 1: The Letter Shifts

• First Letter: Shifts forward by +5 positions in the alphabet.

• Second Letter: Shifts forward by +5 positions in the alphabet.

Let's test this pattern on the given examples:

• TO $\rightarrow$ YT:

  • $\text{T} \xrightarrow{+5} \text{Y}$

  • $\text{O} \xrightarrow{+5} \text{T}$

• IT $\rightarrow$ NY:

  • $\text{I} \xrightarrow{+5} \text{N}$

  • $\text{T} \xrightarrow{+5} \text{Y}$

Applying this directly to ON:

• $\text{O} \xrightarrow{+5} \mathbf{T}$

• $\text{N} \xrightarrow{+5} \mathbf{S}$

• The resulting letters are TS.

---

Rule 2: The Numbers

The second number is the perfect square of the first number ($\text{Number}^2$):

• $5 \rightarrow 5^2 = \mathbf{25}$ (for YT 25)

• $7 \rightarrow 7^2 = \mathbf{49}$ (for NY 49)

Applying this directly to 9:

• $9 \rightarrow 9^2 = \mathbf{81}$

---

Final Match

Combining the letters and the number gives TS 81.