A twodigit number is such that the produce of the digits is 8. When 18 is added to the number, then the digits are reversed. The number is 


(a) 
18 
(b) 
24 
(c) 
42 
(d) 
81 
A twodigit number is such that the produce of the digits is 8. When 18 is added to the number, then the digits are reversed. The number is 


(a) 
18 
(b) 
24 
(c) 
42 
(d) 
81 
Let the ten’s and unit’s digits be and respectively.
Then,
So, ten’s digit = 2 and unit’s digit = 4. Hence, required number = 24.