Question
What is the maximum value of (a + b) if '5a346b8' is
divisible by 12?Solution
A number is divisible by 12 if it divisible by both 3 and 4.
A number is divisible by 4 when last two digits of the number is divisible by 4.
'b8' is divisible by 4 when 'b' = 0, 2, 4, 6 or 8
Since, we have to find maximum value, so 'b' = 8.
A number is divisible by 3 when sum of its digit is divisible by 3.
So, (5 + a + 3 + 4 + 6 + 8 + 8) = (34 + a) must be divisible by 3.
So, 'a' = 2, 5 or 8
Since, we have to find maximum value, so 'a' = 8.
Therefore, required value = 8 + 8 = 16
The orbital velocity of a satellite depends on:
_________is a formula for rust.
Diamond does not conduct electricity because of which of the following reason?Â
Which of the following is a water soluble vitamin?
Which of the following is correct regarding isobars?
I. They have different atomic numbers
II. The have same mass numbers
Which of the following is used as a moderator in nuclear reactors?Â
Who measured the velocity of light first?
Sound cannot pass through –
Name the source from which aspirin is produced?
How can a mixture of sand and salt be separated?
