### Brain Teasers

# Lest Outta Tera

Lester owns a factory adept at making a substance called Lest. It is made by using a substance called Tera.

Making 1 unit of Lest involves using 11 grams of Tera and during it's processing 2 grams of Tera are given out which are reusable.

Now Lester has ordered for 128 grams of Tera.

How many units of Lest can be made out of that?

Making 1 unit of Lest involves using 11 grams of Tera and during it's processing 2 grams of Tera are given out which are reusable.

Now Lester has ordered for 128 grams of Tera.

How many units of Lest can be made out of that?

### Hint

The 2 grams of Tera can be reused with another 9 grams to make a unit of Lest.### Answer

Lester can make 14 units of Lest.128 grams of Tera gives 11 units of Lest and 22 grams of Tera are given out with 7 grams already left from 128 thus leading to 29 grams.

These 29 grams can make 2 units of Lest and 11 grams are left out ( 7 left behind and 4 given out during processing).

These 11 grams are used to make 1 unit of Lest.

Thus the number of units of Lest = 11+2+1=14.

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