# It is given that l varies directly as m. Find m when l is 8. - Mathematics

Sum

It is given that l varies directly as m. Find m when l is 8.

#### Solution

Since l varies directly as m.

If l = 8

∴ l/m = k

⇒ 8/m = 1/3  ...[because k = 1/3]

⇒ m = 8 xx 3 = 24

Concept: Concept of Direct Proportion
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#### APPEARS IN

NCERT Mathematics Exemplar Class 8
Chapter 10 Direct and Inverse Proportions
Exercise | Q 71.(iv) | Page 323