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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