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UPSC CDS 1 2020 Math Paper
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© examsnet.com
Question : 9
Total: 100
If
a
b
=
1
3
,
b
c
=
2
,
c
d
=
1
2
,
d
c
=
3
and
e
f
=
1
4
, then what is the value of
a
b
c
d
e
f
?
1
4
3
4
3
8
27
4
Validate
Solution:
👈: Video Solution
a : b = 1 : 3
b : c = 2 : 1
c : d = 1 : 2
d : e = 3 : 1
e : f = 1 : 4
a : b : c : d : e : f = 2 : 6 : 3 : 6 : 2 : 8
a
b
c
d
e
f
=
2
×
6
×
3
6
×
2
×
8
=
3
8
© examsnet.com
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