Question

A machine makes electric bulbs, of which 2 in 35 are faulty. It made 20 faulty bulbs
in a day. How many good ones did it make?​

Answer 1

Answer:

350

Step-by-step explanation:

To made 20 faulty bulbs, it has to make 10 times of 35 i.e. 350 bulbs.

Answer 2

Answer:

a machine make 2-35 fault

and fault in day =20..

so total bulb in a day is so 35*10=350

350-20= 320 good bulb in a day