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Mathematics
Problem
If
a
a
a
,
b
b
b
,
c
c
c
are three natural numbers in AP and
a
+
b
+
c
=
21
a + b + c = 21
a
+
b
+
c
=
21
then the possible number of values of the ordered triplet
(
a
,
b
,
c
)
(a, b, c)
(
a
,
b
,
c
)
is [2020] (a) 15 (b) 14 (c) 13 (d) None of these
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