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Of which/of whom

Improve your cohesion with these useful expressions for discussing data.

[proportion] of which/whom

some of which
all of which
20 per cent ofwhich		 most of whom
both of whom

For example:

The country has four distinct seasons, two of which have some rainfall. [=two out of the four seasons]
The council collects 30 kg of waste per household, 25 per cent of which is recycled. [ =25 per cent of the waste]

The [property] of which

the size of which
the temperature of which
the sales of which		 the cost of which
the effect of which

For example:

The biggest selling items were widgets, the cost of which increased by $50 over the period. [=the cost of widgets]
The flapper is attached to a wheel, the speed of which is controlled by gears. [ =the speed of the wheel]
- Activity 3.10 - Activity 3.11

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