Question

If class mark is 10 and class width is 6then find the class?

Answer 1

hey dear your ans is here :--------

since , class marks is 10 and class width is 6 .

then , let in the required class lower limit be x and the upper limit be y.

then , as we know that class width :--
= ( upper limit - lower limit).
= (y-x)

since, class width = 6

then , (y-x) = 6................. (i)

also, as we know that class marks = (upper limit + lower limit)/

====) (x+y)/2 = 10
====) x+y = 20................... (ii).
on adding equ.(i) & (ii). we have :--

2y=26
y = 13 ...

and therefore, x = 7.

hence the required class is 7-13


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Answer 2

Answer:

7

Step-by-step explanation: