The sum of all possible values of a, for which the 4-digit number

Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

Advertisement

11.

The sum of all possible values of a, for which the 4-digit number 547a is divisible by 3, is

  • 7

  • 15

  • 10

  • 13


B.

15

The value of a should be decided in such a way that the sum of the digits is divided by 3 completely.

:. 547 a = 5 + 4 + 7 + a = Number divisible by 3 = 16 + a [It should be divided by 3 completely]

⇒ a = 2, 5, 8 = 2 + 5 + 8 [Sum of values of a]

= 15


Advertisement
12.

A common factor of x4 - 256, x3 - 4x2 +3x - 12 and x2 - 7x + 12 is

  • x + 4

  • x - 3

  • x - 4

  • x + 3


Advertisement