A number of two digits has 3 for its unit's digit, and the sum of digits is $$\frac{1}{7}$$ of the itself. The number is :
A. 43
B. 63
C. 53
D. 73
Answer: Option B
Solution(By Examveda Team)
Let the ten's digit be xThen, number = 10x + 3 and
Sum of digits = (x + 3)
So, (x + 3) = $$\frac{1}{7}$$(10x + 3)
⇔ 7x + 21 = 10x + 3
⇔ 3x = 18
⇔ x = 6
Hence, the number is :
= (10x + 3)
= (10 × 6 + 3)
= 63
Related Questions on Problems on Numbers
If one-third of one-fourth of a number is 15, then three-tenth of that number is:
A. 35
B. 36
C. 45
D. 54
E. None of these
A. 9
B. 11
C. 13
D. 15
E. None of these
A. 3
B. 4
C. 9
D. Cannot be determined
E. None of these
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