Problems on Numbers Questions and Answers

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Q21
the sum of the squares of three consecutive odd numbers is 251. the numbers are :
  • A 1, 3, 5
  • B 3, 5, 7
  • C 5, 7, 9
  • D 7, 9, 11
Answer: Option D
Q22
Two numbers are such that the square of one is 224 less than 8 times the square of the other. If the numbers be in the ratio of 3 : 4, the numbers are :
  • A 12, 16
  • B 6, 8
  • C 9, 12
  • D None of these
Answer: Option B
Q23
The difference of two numbers is 20% of the larger number. If the smaller number is 12, the larger one is :
  • A 6
  • B 15
  • C 18
  • D 20
Answer: Option B
Q24
Three numbers are in the ratio of 3 : 4 ; 6 and their product is 1944. The largest of these numbers is :
  • A 6
  • B 12
  • C 18
  • D None of these
Answer: Option C
Q25
Three numbers are in the ratio 4 : 5 : 6 and their averge is 25. The largest number is :
  • A 30
  • B 32
  • C 36
  • D 42
Answer: Option A
Q26
There are two numbers such that the sum f twice the first and twice the second is 36. The larger of the two is :
  • A 9
  • B 6
  • C 8
  • D 12
Answer: Option A
Q27
The sum of three numbers is 136. If the first number second be 2 : 3 and that between second and third is 5:3, then the second number is
  • A 40
  • B 48
  • C 72
  • D 60
Answer: Option D
Q28
The sum of three numbers is 264. If the first number be twice the second and third number be one-third of the first, then the second number is :
  • A 48
  • B 54
  • C 72
  • D 84
Answer: Option C
Q29
The sum o two consecutive odd numbers in a set of three consecutive odd numbers is 5 more than the third number. What is the s second of these numbers :
  • A 5
  • B 7
  • C 9
  • D 11
Answer: Option C
Q30
The ratio between a two-digit number and the sum of the digits of that number is 4:1. If the digit in the unit place is 3 more than the digit in the ten's place. What is that number ?
  • A 24
  • B 63
  • C 36
  • D None of these
Answer: Option C
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