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how many numbers in form of abcd in which a>b=c

how many numbers in form of abcd in which a>b=c

Grade:

3 Answers

yaswanth
36 Points
6 years ago
a>b=c
we can take a=1,2,3,4,5,6,7,8,9
for a=1;b=0=c
for a=2;b=c=0,1
for a=3;b=c=0,1,2
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.
.
.
.
for a=9;b=c=0,1,2,3,4,5,6,7,8
thus total=1+2+3+.....+9=45
 
yaswanth
36 Points
6 years ago
other simple way is
there are99 2 digitno.
9 areof a=b form
90/2=45 are in the form a>b
45 are in the form a
 
yaswanth
36 Points
6 years ago
other simple way is
there are99 2 digitno.
9 areof a=b form
90/2=45 are in the form a>b
45 are in the form a
 

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