Math MCQs with answers Page - 14

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Q. The sum of two numbers is 20 and their product is 75. What is the sum of their reciprocals?

  • (A) 1/15
  • (B) 1/5
  • (C) 4/15
  • (D) 7/15

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Q. The ratio of two complementary angles is 1:5, what is the difference between the two angles?

  • (A) 60°
  • (B) 90°
  • (C) 120°
  • (D) Cannot be determined

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Q. What is the logarithm of 0.0001 with respect to base 10?

  • (A) 4
  • (B) 3
  • (C) -4
  • (D) -3

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Q. The pair of numbers which are relatively prime to each other is

  • (A) 68,85
  • (B) 65,91
  • (C) 92,85
  • (D) 102,153

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Q. How many rational numbers are there between 1 to 1000?

  • (A) 998
  • (B) 999
  • (C) 1000
  • (D) Infinite

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Q. The number 58129745812974 is divisible by

  • (A) 11
  • (B) 9
  • (C) Both a and b
  • (D) None of above

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Q. What is the length of the uniform wire of diameter 0.4 CM that can be drawn from a solid sphere of radius 9 CM?

  • (A) 343 m
  • (B) 240 m
  • (C) 60.75 m
  • (D) 60 m

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Q. What will be the cost to plaster the inner surface of a well 14 metre Deep and 4 metre in diameter at the rate of rupees 25 per square metre?

  • (A) ₹4000
  • (B) ₹4200
  • (C) ₹4400
  • (D) ₹5400

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Q. Stock of food is enough for 240 man for 48 days how long will the same stock last for 160 men?

  • (A) 54 days
  • (B) 60 days
  • (C) 64 days
  • (D) 72 days

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Q. The HCF and LCM of two natural numbers are 12 and 72 respectively. what is the difference between the two numbers if one of the numbers is 24?

  • (A) 12
  • (B) 18
  • (C) 21
  • (D) 24