Question

Please help! Will give brainliest to correct answer

Answer 1

We can solve it through proportionality or ratios

• 2 lamps required to create 4signals

Let lamps required to create 60signals be x

Now

$\\ \sf\longmapsto 2:4=x:60$

$\\ \sf\longmapsto \dfrac{2}{4}=\dfrac{x}{60}$

$\\ \sf\longmapsto 4x=60(2)$

$\\ \sf\longmapsto 4x=120$

$\\ \sf\longmapsto x=\dfrac{120}{4}$

$\\ \sf\longmapsto x=30$