When we write all the numbers from 1 to 100. then how many times do we write the number
جب ہم 1 سے 100 تک تمام نمبر لکھتے ہیں تو ہم کتنی بار نمبر لکھتے ہیں؟
Answer: 20
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.
ND-21-5-2023
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