Question

maths experts
class 10! ​

Answer 1

Given,

The upper limit of a class interval = 42.5 and

The class mark = 40

To find, the lower limit = ?

Let lower limit = x

We know that,

The class mark

$\implies \frac{42.5 + x}{2} = 40$

$\implies42.5 + x = 80$

$\implies \: x = 80 - 42.5$

$\implies \: x = 37.5$

∴ x = 37.5

The lower limit = 37.5

Hence, the lower limit is equal to 37.5

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