Problems on Numbers Quiz Set 008 | Maths Aptitude Quiz Questions and Mock Test on Problems on Numbers Set 8 | mock tests for Bank PO, SSC Exams, SO Clerical Exam, GATE Exam, LIC AO, GIC AO, etc.

**Your Score**
Correct Answers:
Wrong Answers:
Unattempted:

Question 1

x should be replaced by which minimum number so that 828517x265 is completely divisible by 9?

Soln.
Ans: a

If the above number has to be divisible by 9, the sum of the digits, i.e., 8 + 2 + 8 + 5 + 1 + 7 + x + 2 + 6 + 5, should be divisible by 9. So we can see that $x + 44$ should be divisible by 9. By inspection, x = 1.

Solution | Discuss! | Chapters»

Question 2

A number is multiplied by 2, then 24 is added to it. The result remains the same if 14 is multiplied to the number and then 240 subtracted. What is the number?

22.

23.

21.

24.

Soln.
Ans: a

Let the number be n. From the given conditions we have $2n + 24 = 14n - 240$. Rearranging we have $240 + 24 = 14n - 2n$, ⇒ $n = {240 + 24}/{14 - 2}$. So n = 22.

Solution | Discuss! | Chapters»