Toy B consumes battery units based on its neck movements (NM) and hand rotations (HR). Given that at every 3rd NM and 2nd HR together, 1 unit of battery is consumed, and the power consumed per NM of Toy B is 0.1 unit, calculate the power consumed per HR of Toy B on that day.

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**Solution:**

1. According to the problem, 1 unit of battery is consumed when Toy B completes every 3rd NM and 2nd HR together.

2. Let the power consumed per HR be *x* units.

3. Given power consumed per NM = 0.1 unit.

4. Therefore, the total power consumed for 3 NM and 2 HR is:
   $$3 	imes 0.1 + 2 	imes x = 1$$

5. Simplify the equation:
   $$0.3 + 2x = 1$$

6. Subtract 0.3 from both sides:
   $$2x = 1 - 0.3 = 0.7$$

7. Divide both sides by 2:
   $$x = \frac{0.7}{2} = 0.35$$

**Answer:** The power consumed per HR of Toy B is $0.35$ unit.

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