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
In the sentence marked as (6) in the passage, find out an error, if there is any. If there is no error, mark option 5, ‘No error’ as the answer.
Choose the most appropriate word for blank no. (i)
Find the appropriate word.
Select the most appropriate option for blank No. 5.
Fill in blank 4 with the appropriate word from the options.
Select the most appropriate option to fill in blank No.4.
According to the author rupee is not the only currency that is losing its value against dollar. How does this fact affect India?
The two sides adopted a Joint Action Plan in 2005 towards strengthening dialogue and consultation mechanisms in the political and economic spher...
Fill in the blank with the most appropriate word.
Which of the following options is most suitable for blank 5?
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