Afactory produces some batteries daily. 7/8 of the batteries are packaged immediately. 2/3 of the
remaining batteries are sent to charity and the rest are faulty.
(a) find the fraction of batteries that are faulty in the batch.

Step-by-step explanation:

Let the total number of batteries produced daily be represented by x.

7/8 of the batteries are packaged immediately.

So the total number of packaged batteries =

Remaining batteries =

=

Two third of the remaining batteries are sent to charity.

So the total number of batteries sent to charity=

=

Remaining batteries are faulty.

So the total number of faulty batteries =

=

=

So the faction of batteries which are faulty =

=

=

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

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