# Verbal Reasoning - Arithmetic Reasoning - Discussion

### Discussion :: Arithmetic Reasoning - Section 1 (Q.No.24)

24.

If you write down all the numbers from 1 to 100, then how many times do you write 3 ?

 [A]. 11 [B]. 18 [C]. 20 [D]. 21

Explanation:

Clearly, from 1 to 100, there are ten numbers with 3 as the unit's digit- 3, 13, 23, 33, 43, 53, 63, 73, 83, 93; and ten numbers with 3 as the ten's digit - 30, 31, 32, 33, 34, 35, 36, 37, 38, 39.

So, required number = 10 + 10 = 20.

 Mounika said: (May 25, 2011) Here 4m 1 to 10 , we clearly have 10 no's:3,13,23,33,43,53,63,73,83,93 and more 9 no's:30,31,32,34,35,36,37,38,39 Since we have calculated 33 already need not count here . Hence answer is 19.

 Senthilkumar said: (Jun 18, 2011) NO the answer was 20 because in 33 we wrote down 3 in two times so 20 is the right answer but here they mistakenly said 33 two times

 Ashish said: (Aug 10, 2011) Yes the answer should be 19.

 Sundar said: (Aug 11, 2011) @All The correct answer is 20. 03, 13, 23, 43, 53, 63, 73, 83, 93 = 9 3s are there 30, 31, 32, 34, 35, 36, 37, 38, 39 = 9 3s are there 33 = 2 3s are there Total = 9 + 9 + 2 = 20.

 Paulwin Jerome said: (Feb 2, 2015) 3, 13, 23, 33, 43, 53, 63, 73, 83, 93 = Eleven 3's. 30, 31, 32, 34, 35, 36, 37, 38, 39 = Nine 3's. Therefor 11 + 9 = 20.

 Almojeed said: (Nov 19, 2016) It's wrong, because 33 was counted twice. Therefore, the answer is 19.

 Shravan Sharma said: (Feb 7, 2017) The correct answer is 19. 10 times from 30 to 39 and rest 9 from 3, 13, 23, 43, 53, 63, 73, 83, 93.

 Lokesh Sanam said: (May 8, 2017) Why to count 33 two times? Please explain it.

 Siyad said: (Jun 13, 2017) @Mounika @Ashish @Almojeed @Shravan Sharma @Lokesh Sanam. The answer is Option [C]. 20. In 33, we have to write 3 twice. Hope you will understand.

 Mark John Ureta said: (Feb 12, 2018) Treat 3 as ones digit different to 3 use as a tens digit.

 Vishwajeet said: (Feb 27, 2018) 33 is counted double. Answer should be 19.

 Himanshu Kumar Tiwari said: (Aug 25, 2018) The Right answer is 19.

 Nisha Pawar said: (Sep 1, 2018) The Right answer is 20. I agree.

 Digvijay said: (Dec 22, 2018) @Sundar you're right. In 33 we write 3 two times.

 Pankaj said: (Jan 5, 2019) 20 because 33 has 2 3's.

 Neeraja said: (Jul 14, 2020) Thanks @Sundar.