Question

A battery manufacturer wants to test their batteries.

They put a battery in a torch, switch on the torch, and see how long the battery lasts.
Explain why testing a 10% sample of their batteries would not be suitable.
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Answer 1

a because i know its right

Answer 2

A flashlight or torch or torchlight is a portable hand-held electric light. Formerly, the light source typically was a miniature incandescent light bulb but these have been displaced by light-emitting diodes (LEDs) since the mid-2000s. A typical flashlight consists of the light source mounted in a reflector, a transparent cover (sometimes combined with a lens) to protect the light source and reflector, a battery, and a switch, all enclosed in a case.

Hope this helps a little.