Aptitude Hack#85(19-5-19)

Question:

A crate of mangoes contains one bruised mango for every thirty mangoes in the crate. If three out of every four bruised mango are considerably unsaleable and there are 12 unsaleable mangoes in the crate then how many mangoes is there in the crate?

   A )   450
   B )   480
   C )   500
   D )   490

Answer: B) 480

Explanation: 

Let the total no of mangoes in the crate be x

Then the no of bruised mango = 1/30 * x

Let the no of unsalable mangoes =3/4 *(1/30 x)

1/40 *x =12

x=480

Hence 480 mangoes are there in the crate.