Question

XERCISE 12.2
Determine which of the following are in proportion:
(b) 14, 35, 16, 40

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Answer 1

Answer:

Solution :

a) 25cm/1m=25cm/100cm=1/4

`40Rs/160 Rs=1/4

They are proportionate

middle terms are 25 cm and 40 Rs

Extreme terms are 1 m and 160 Rs

b)39l/65l 39/65

6/10 bottles=3/5

They are not Proportionate.

c)2kg/80kg=1/40

25g/625g=1/25

They are not proportionate

d)200/2500=2/25

4/50=2/25

They are proportionate

middle terms are 200ml and 4Rs

Extreme numbers are 2.5litre and 50Rs.