Take the number from the answer above (N). We will now find the Lower end of the THR. Follow this math equation. ("N" x 0.6) =? Once you find this number, now you will add your (RHR). What number are you left with? This is your lower Target Heart Rate.

See Explanation

Explanation:

The question is straightforward; however, some important details are missing.

The missing details are: N and RHR

To solve this question, we will make assumptions for N and RHR

Represent the target heart rate with THR.

So, the steps are:

Step 1: N * 0.6 = (1)

Step 2: (1) + RHR

Step 3: THR = 2

Hence, the equation to solve THR is:

Assume the values of N and RHR are: 50 and 60 respectively

The equation becomes

Hence, the target heart rate for N = 50 and RHR = 60 is: 90

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