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Mathematics (Sainik School)

Practice basic mathematics skills including arithmetic operations, divisibility rules, decimals, percentages, ratios, and proportions suitable for elementary school level.

22 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

If K is the number, which is obtained when the sum of the numbers 12.23541 and 1.25462 is subtracted from the sum of the numbers - 3.26541 and - 1.23546, then the value of K will be

  1. 8.98916
  2. 17.9909
  3. 16.9909
  4. 18.9909
  5. None of these
Question 2 Multiple Choice (Single Answer)

Which of the following numbers is not divisible by 4?

  1. 231404
  2. 231436
  3. 231444
  4. 231414
  5. None of these
Question 3 Multiple Choice (Single Answer)

What must be subtracted from 5.23641 to get 8.21564?

  1. - 1.97923
  2. 2.97923
  3. 1.97923
  4. - 2.97923
  5. None of these
Question 4 Multiple Choice (Single Answer)

Which of the following numbers is not divisible by 8?

  1. 123128
  2. 123144
  3. 123160
  4. 123166
  5. None of these
Question 5 Multiple Choice (Single Answer)

Pradeep is 2 years older than Dipali. Dipali's age is two times the age of Rakesh. If the present age of Rakesh is 10 years, then the present age of Pradeep is

  1. 21 years
  2. 20 years
  3. 22 years
  4. 18 years
  5. None of these
Question 6 Multiple Choice (Single Answer)

What number should be added to 1.02064 to get 3.52146?

  1. - 1.50082
  2. 2.50082
  3. 1.50082
  4. - 2.50082
  5. None of these
Question 7 Multiple Choice (Single Answer)

A number is multiplied by 2/3. What is the percentage increment or decrement in the number?

  1. 33.33% increment
  2. 50% decrement
  3. 33.33% decrement
  4. 50% increment
  5. None of these
Question 8 Multiple Choice (Single Answer)

A man bought a radio set for Rs. 620, spent Rs. 30 on its repair and sold it for Rs. 700. What is the overall gain or loss percent for the man?

  1. 11.42%
  2. 7.14%
  3. 12.90%
  4. 7.69%
  5. None of these
Question 9 Multiple Choice (Single Answer)

Pradeep works in an office. His monthly salary is Rs. 3000. He saves 25% of his monthly salary. What is the ratio of his savings to his income?

  1. 4 : 1
  2. 1 : 4
  3. 3 : 4
  4. 4 : 3
  5. None of these
Question 10 Multiple Choice (Single Answer)

There are 60 students in a class, out of which 30% are girls and remaining are boys. What is the ratio of the number of girls to that of boys in the class?

  1. 3 : 10
  2. 3 : 7
  3. 7 : 10
  4. 7 : 3
  5. None of these
Question 11 Multiple Choice (Single Answer)

The simplest ratio of 8 paise to Re. 1 will be

  1. 8 : 1
  2. 2 : 25
  3. 1 : 8
  4. 8 : 100
  5. None of these
Question 12 Multiple Choice (Single Answer)

Which of the following are in proportion?

  1. 2, 6, 4, 8
  2. 2, 6, 4, 10
  3. 2, 6, 4, 12
  4. 2, 6, 4, 14
  5. None of these
Question 13 Multiple Choice (Single Answer)

If the first three terms of a proportion are 5, 9 and 10, then the fourth term of the proportion will be

  1. 18
  2. 8
  3. 12
  4. 16
  5. None of these
Question 14 Multiple Choice (Single Answer)

If the cost of 100 g tea is Rs. 25, then the cost of 1.5 kg tea will be

  1. Rs. 300
  2. Rs. 400
  3. Rs. 500
  4. Rs. 375
  5. None of these
Question 15 Multiple Choice (Single Answer)

In a class, the ratio of numbers of girls to boys is 2 : 5. If there are 20 girls in the class, then the total number of students in the class is

  1. 20
  2. 70
  3. 50
  4. 30
  5. None of these
Question 16 Multiple Choice (Single Answer)

If the numbers 5, x, 4 and 6 are in proportion, then value of y in the equation 2y + x = 7 will be

  1. 5/2
  2. - 2/5
  3. - 5/2
  4. 2/5
  5. None of these
Question 17 Multiple Choice (Single Answer)

The value of y in 3(y + z) = 2y(k + s), where k + s = 2 z and z = 1, is

  1. - 3
  2. 4
  3. 1
  4. 3
  5. None of these
Question 18 Multiple Choice (Single Answer)

The expression which represents "k multiplied to the sum of L and M" will be

  1. k x L + M
  2. k x M + L
  3. k x (L + M)
  4. (k + L) x M
  5. None of these
Question 19 Multiple Choice (Single Answer)

If 365m2 is divisible by 3, then what is the value of m?

  1. 4
  2. 1
  3. 2
  4. 6
  5. None of these
Question 20 Multiple Choice (Single Answer)

The cost of tea is Rs. 26 per 100 g and the cost of potato is Rs. 20 per 500 g. What is the ratio of the price of tea to that of potato?

  1. 13 : 10
  2. 2 : 13
  3. 13 : 2
  4. 10 : 13
  5. None of these
Question 21 Multiple Choice (Single Answer)

In a test, Dipali got 15 marks out of 20, Pradeep got 45 marks out of 50, Pankaj got 8 marks out of 10, Praveen got 20 marks out of 24 and Shrawan got 2 marks out of 5. Who scored the highest?

  1. Dipali
  2. Pradeep
  3. Pankaj
  4. Praveen
  5. Shrawan
Question 22 Multiple Choice (Single Answer)

Rs. 4900 are to be distributed among A, B and C in the ratio 1 : 2 : 4. If the amount received by A is Rs. K, amount received by B is Rs. L and amount received by C is Rs. Z, then the value of (2000 K - LZ) will be

  1. 2520000
  2. 252000
  3. - 252000
  4. - 2520000
  5. None of these
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