Missing Numbers Quiz Set 002 | Missing Numbers Type of Questions for Aptitude and Reasoning Exams Set 2 | Online self tests for IBPS, Clerical, SO, SSC, SSB, NTSE, Mental Ability Exams

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Question 1

225, 336, 447, (?), 669, 7710,

114.

338.

558.

991.

Soln.
Ans: c

225, 336, 447, 558, 669, 7710. First two digits of each term are 22, 33, 44, 55, 66 and 77 respectively. While third digit of each term is 5, 6, 7, 8, 9, and 10 respectively.

Solution | Discuss! | Chapters»

Question 2

Which one number is like the given number set (363, 489, 579)?

281.

382.

471.

562.

Soln.
Ans: c

Sum of digits of all these numbers is 3.In 363 → 3 + 6 + 3 = 12 = 1 + 2 = 3. In 363 → 4 + 8 + 9 = 21 = 2 + 1 = 3. In 363 → 5 + 7 + 9 = 21 = 2 + 1 = 3. Similarly, in 471 → 4 + 7 + 1 = 12 = 1 + 2 = 3

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Question 3

80.

114.

108.

None of these.

Soln.
Ans: c

(4 + 8) x 9 = 108. ∴ (5 + 4) x 12 = 108.

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Question 4

Directions : One number is wrong in the series. Find out the wrong number.

88, 54, 28, 13, 5, 2, 2

Soln.
Ans: b

Series moves from the right end with a difference of 0, 3, 8, 15, 24, 35 i.e., with a difference of numbers, which are one less than the square of successive natural numbers. Therefore, number 54 should be replaced by 53.

Solution | Discuss! | Chapters»

Question 5

Examine this series: 2, 9, 45, 247.5, 1485. If another series is written with the same rule, what number would come in the place B: 3, A, B, C, D, E ?

64.5