Water from Manjeet's shower flows at a rate of 12 litres per minute. The water from the shower flows into a tank that is a cuboid of length $$$90 \mathrm{~cm}$$$ and width $$$75 \mathrm{~cm}$$$. Calculate the increase in the level of water in the tank when the shower is used for 7 minutes. ........................................ $$$\mathrm{cm}$$$

Mathematics

IGCSE&ALevel

CAIE

Exam No：0580_m20_qp_42 Year：2020 Question No：3(c)

Answer:

$12.4$ or $12.44 \ldots$

Knowledge points:

E1.11.1 Demonstrate an understanding of ratio and proportion. (To include numerical problems involving direct and inverse proportion.)

E1.11.2 Increase and decrease a quantity by a given ratio.

E1.11.3 Calculate average speed. (Use ratio and scales in practical situations.)

E1.11.4 Use common measures of rate. (Formulae for other rates will be given in the question e.g. pressure and density.)

E5.4.1 Carry out calculations involving the surface area and volume of a cuboid, prism and cylinder. (Answers may be asked for in multiples of π.)

E5.4.2 Carry out calculations involving the surface area and volume of a sphere, pyramid and cone. (Formulae will be given for the surface area and volume of the sphere, pyramid and cone in the question.)

Answer:

Knowledge points:

Solution:

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