Water flows at a speed of $$$20 \mathrm{~cm} / \mathrm{s}$$$ along a rectangular channel into a lake. The width of the channel is $$$15 \mathrm{~cm}$$$. The depth of the water is $$$2.5 \mathrm{~cm}$$$. Calculate the amount of water that flows from the channel into the lake in 1 hour. Give your answer in litres. .................................... litres

Mathematics

IGCSE&ALevel

CAIE

Exam No：0580_s20_qp_43 Year：2020 Question No：6(b)

Answer:

2700

Knowledge points:

E5.1 Use current units of mass, length, area, volume and capacity in practical situations and express quantities in terms of larger or smaller units. (Convert between units including units of area and volume.)

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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