Question

The sound off siren company tests every fifth siren for sound quality and every eighth siren for mechanical quality. The daily output is 350 sirens. What percentage is tested for mechanical quality? What percent is tested for both types of quality at the same time?

Answer 1

Kindly check explanation

Explanation:

Given that:

Sound quality test = every fifth siren

Mechanical quality = every 8th siren

Daily output = 350 siren

Percentage tested for mechanical quality :

Number of siren tested for mechanical quality / total output

Number of siren tested for mechanical quality = (350 / 8) = 43. 75

= 43 sirens

% tested for mechanical quality :

(43 / 350) * 100%

0.12285 × 100%

= 12.29%

What percent is tested for both types of quality at the same time?

Number tested for both types simultaneously = 8

% tested for both types of quality :

(8 / 350) * 100%

0.0228571 × 100%

= 2.28571%

= 2.29%