A positive number under 1000 has exactly one odd digit and it is also a multiple of 5. how many such numbers are there?
1 answer:
Answer:
75
Step-by-step explanation:
Numbers that apply (Had to count each one and it was a pain)
5
10
25
30
45
50
65
70
85
90
100
120
140
160
180
205
210
225
230
245
250
265
270
285
290
300
320
340
360
380
405
410
425
430
445
450
465
470
485
490
500
520
540
560
580
605
610
625
630
645
650
665
670
685
690
700
720
740
760
780
805
810
825
830
845
850
865
870
885
890
900
920
940
960
980
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Answer:
Odd
Step-by-step explanation:
I got a total of 54.6
but i dont know if it is correct
22
Explanation: 10+3=13 13+4=17 17+5=22
The transformation which is represented is a 180 degree rotation about the origin
