Opposite-direction counting — synchronized calls Nitin counts down from 32 (32, 31, 30, …) while Sumit counts up only odd numbers starting at 1 (1, 3, 5, …), calling out numbers at the same speed. Will they ever call the same number at the same time?

Difficulty: Medium

Correct Answer: They will not call out the same number

Explanation:


Introduction / Context:
We compare two synchronized sequences to test if a common term occurs at the same index.



Concept / Approach:
At step t (starting t = 0 at the first call), Nitin says 32 − t. Sumit says 2t + 1. Set them equal and check for integer t ≥ 0.



Step-by-Step Solution:
Equation: 32 − t = 2t + 1 ⇒ 31 = 3t ⇒ t = 31/3.t is not an integer ⇒ there is no synchronized step where both announce the same number.



Verification / Alternative check:
Listing partial terms shows near misses but no exact match at the same step.



Final Answer:
They will not call out the same number

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