Question

15 is less than ⬛️ divided by 400

⬛️ = Blank

Answer 1

All values more than 6000.

Explanation:

Let x be the unknown value in the given problem,

That is,

15 <
`(x)/(400)`

∵ 400 > 0

`\implies 15* 400 <(400x)/(400)`
`(\because a < b \implies ca < cb\text{ where }c > 0 )`

`\implies 6000 < x`

Hence, all values greater than 6000 is the solution of the given phrase.

Answer 2

Let us label the blank by x.

Then,
`15 < (x)/(400)`

`(x)/(400) >15`

x > 6000