Question

in a class of 10 a student are 1.28 m tail each of two well as student are 1.36 tail and each of 18 students are 1.40 m tell what is the average health of the a student in the class​

Answer 1

Answer:

Given:

Height of ten students -- 1.28m

⇒ 10×1.28 = 12.8m

Height of twelve students -- 1.36m

⇒12×1.36 = 16.32 m

Height of eighteen students -- 1.40m

⇒18×1.4 = 25.2m

Average height of students = $\frac{16.32+12.8+25.2}{10+12+18}$

= $\frac{54.32}{40}$ = 1.358

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