Question

A staining solution bottle in a medical laboratory contains 30 ounces .A blood staining test requires 3/4 of solution a tissue staining test requires 1/2 oz of solution if for blood tests and five tissue tests are performed how many ounces of solution are left in the bottle

Answer 1

5 ounces of solution are left in the bottle.

Explanation:

Volume of the staining solution, s = 30 oz

Volume required for the blood staining test =
`(3)/(4)` of solution

`=(3)/(4)* 30 = 22.5 oz`

Volume required for blood tests =
`(1)/(2)oz=0.5 oz`

Number of blood staining tests run = 1

Volume of solution required in 1 blood staining test ,x= 22.5 oz × 1 = 22.5 oz

Number of blood test run = 5

Volume of solution required in 5 blood test ,y= 0.5 oz × 5 = 2.5 oz

Volume of staining solution left : s - x- y

= 30 oz - 22.5 oz - 2.5 oz = 5 oz

5 ounces of solution are left in the bottle.