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What is the fixed pulse width of the pulse after process of one-shot circuit?

What is the fixed pulse width of the pulse after process of one-shot circuit? Correct Answer 230 ms

After peak detection, the processed pulses operate a one-shot circuit which gives a fixed pulse width of 230 ms. The output of one-shot triggers a variable pulse width multi-vibrator which adds and gives either 43 or 116 ms time depending on the heart rate. The pulse width at the output will be either 230 + 43 = 273 ms or 230 + 116 = 346 ms.

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