Lakshya Education MCQs

Question: An empty fuel tank of a car was filled with A type petrol. When the tank was half-empty, it was filled with B type petrol. Again when the tank was half-empty, it was filled with A type petrol. When the tank was half-empty again, it was filled with B type petrol. What is the percentage of A type petrol at present in the tank ?
Options:
A.37.5%
B.35.5%
C.30%
D.60%
Answer: Option A

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Question 1. An empty fuel tank of a car was filled with A type petrol. When the tank was half-empty, it was filled with B type petrol. Again when the tank was half-empty, it was filled with A type petrol. When the tank was half-empty again, it was filled with B type petrol. What is the percentage of A type petrol at present in the tank ?
  1.    33.5%
  2.    37.5%
  3.    40%
  4.    50%
Answer: Option B
Question 2. Solve this : 15% of 578 + 22.5% of 644 = ?
  1.    231.4
  2.    231.6
  3.    231.8
  4.    233.6
  5.    None of these
Answer: Option B
Question 3. Solve : 105.27% of 1200.11 + 11.80% of 2360.85 = 21.99% of (?) + 1420.99
  1.    500
  2.    240
  3.    310
  4.    550
Answer: Option D
Question 4. Anand has drawn an angle of measure 45° 27' when he was asked to draw an angle of 45° . The percentage error in his drawing is ?
  1.    0.5%
  2.    1%
  3.    1.5%
  4.    2.0%
Answer: Option B
Question 5. At the college entrance examination, each candidate is admitted or rejected according to whether he has passed or failed the tests. Of the candidates who are really capable, 80% pass the tests and of the incapable, 25% pass the test. Given that 40% of the candidates are really capable, the proportion of capable college students is about:
  1.    68%
  2.    70%
  3.    73%
  4.    75%
Answer: Option A
Question 6. What percent of 7.2 kg is 18 gms ?
  1.    0.025%
  2.    0.25%
  3.    2.5%
  4.    25%
Answer: Option B

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