Question
Find the greatest value of (a + b) such that an 8-digit
number 4523a60b is divisible by 15.Solution
Factors of 15 = (3 × 5) and the divisibility rule of 15 says that sum of digits be divided by 3 and the last number will be 5. Possible values of b are 0 and 5 Now, 4 + 5 + 2 + 3 + a + 6 + 0 + 0 = 20 + a Here a can be 1, 4, 7 For greatest we need to take 7 So, a + b = 7 + 0 = 7 which is not present in the option Again, 4 + 5 + 2 + 3 + a + 6 + 0 + 5 = 25 + a Here a can be 2, 5, 8 For greatest we need to take 8 So, a + b = 8 + 5 = 13 which is present in the option ∴ Required answer is 13
Who established the non-governmental organization Hitaishi India?
Which individual has served as the Vice President of India on two separate occasions?
"Taare Zameen Par" movie is based on which learning disorder?
“Subhadra Scheme”, recently seen in the news, is the largest women-centric scheme of which state?
Arrange the following countries, as largest countries by Area in the chronological order from highest to lowest in terms of the area.
A. Ind...
The capital of Kenya is -
Which one of the following states recently launched ‘Single Click Pension Delivery Scheme ‘?
East Uttar Pradesh's first Cable Car Service has started in which of the following districts?
'World No Tobacco Day' is observed on -
In IT sector what does AI stands for -