The average height of 16 students is 142 cm. If the height of the teacher is included, the average height increases by 1 cm. The height of the teacher is

156 cm

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159 cm

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158 cm

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157 cm

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159.5 cm

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Solution

The correct option is B 159 cm
Here,height of the teacher
= 142 + (16 + 1) $\times$ 1
= 142 + 17
= 159 cm

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The average height of 16 students is 142 cm. If the height of the teacher is included, the average height increases by 1 cm. The height of the teacher is

The correct option is B 159 cm Here,height of the teacher = 142 + (16 + 1) × 1 = 142 + 17 = 159 cm

The correct option is B 159 cm
Here,height of the teacher
= 142 + (16 + 1) $\times$ 1
= 142 + 17
= 159 cm