Number System Questions Practice Question and Answer
8 Q: The smallest positive integer, which when multiplied by 392 gives the product a perfect square number, will be :
1292 06319b9b26a86583500fe86f2
6319b9b26a86583500fe86f2- 15false
- 26false
- 37false
- 4Nonetrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "None "
Q: The total number of digits used in numbering the pages of a book of 366 pages is
1292 0632c6a595c208a6bf7ebff89
632c6a595c208a6bf7ebff89- 1732false
- 2990true
- 31098false
- 41305false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "990"
Q: There are two numbers such that the first number is four times of the second mumber. If their average is 65, then what is the second number?
1290 06426dcdced76c064b85c6bad
6426dcdced76c064b85c6bad- 126true
- 214false
- 324false
- 428false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "26"
Q:Directions: Find the wrong number in the following number series:
2, 3, 8, 31, 154, 924, 6460
1284 064d4b805ebd5c3747277ead0
64d4b805ebd5c3747277ead0- 1924true
- 26460false
- 3154false
- 48false
- 531false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "924"
Q: Two positive numbers differ by 1280. When the greater number is divided by the smaller number, the quotient is 7 and the remainder is 50. The greater number is:
1282 064bfb2f4e2108a7239492d0d
64bfb2f4e2108a7239492d0d- 11558false
- 21458false
- 31585false
- 41485true
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "1485"
Explanation :
Given :- Two positive numbers differ by 1280
When the greater number is divided by the smaller number The quotient is 7 and the remainder is 50
Concept :- Dividend = Quotient × divisor + remainder
Calculation :- Let greater number = a and Smaller number = b From question, ⇒ a - b = 1280 ....(1) Again from question, ⇒ a = 7b + 50 ....(2)
Put the value of a from equation (2) into equation (1) ⇒ 7b + 50 - b = 1280 ⇒ 6b = 1280 - 50 ⇒ 6b = 1230 ⇒ b = (1230/6) ⇒ b = 205
Put the value of b in equation (1) ⇒ a - 205 = 1280 ⇒ a = 1280 + 205 ⇒ a = 1485 ⇒ Greater number = 1485 ∴ Greater number is 1485
Q: If a certain number of two digits is divided by the sum of its digits, the quotient is 6 and the remainder is 3. If the digits are reversed and the resulting number is divided by the sum of the digits, the quotient is 4 and the remainder is 9. The sum of the digits of the number is
1279 062bae8f525fd051a65533499
62bae8f525fd051a65533499- 112true
- 24false
- 36false
- 49false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "12"
Q: Adding 335 to 5A7 results in 8B2. The number 8B2 is divisible by 3. Accordingly, what will be the maximum possible value of A?
1277 06321ae963169cb1b15677a45
6321ae963169cb1b15677a45- 18false
- 24true
- 32false
- 46false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "4"
Q: Find the mode for the given distribution (rounded off to two decimal places)
Class 5-10 10-15 15-20 20-25 25-30 30-35
Interval Frequency 8 7 6 9 11 10
1273 064954576dad6f2e01f5ee4f8
64954576dad6f2e01f5ee4f8- 135.25false
- 240.25false
- 330.33false
- 428.33true
- Show AnswerHide Answer
- Workspace
- SingleChoice

