In a two digit number, the digit in the units place is two times the digit in ten's place and sum of the digits is equal to 12. What is the number? Choose the most appropriate option:
A) 25 B) 28 C) 32 D) 36 E) 48
Solution   Let the ten digits be x. Then,units digit=2x   Therefore x + 2x = 12   ‹=›3x = 12   ‹=›x= 4.   So, ten's digit = 4, unit's digit = 8.   Hence, the required number is 48.   Answer 48
<result>E</result>
In a two digit number, the digit in the units place is two times the digit in ten's place and sum of the digits is equal to 12. What is the number?