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SSC Scientific Assistant Shortcuts — practice questions

Explore 20 free Shortcuts questions in SSC Scientific Assistant Quantitative Aptitude. Open each question or exercise to read its content, reference answers and available explanation.

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Shortcuts questions and exercises with answers

Showing questions 1–20 of 20.

Bishan cycled 120 km at a fixed speed. Had he cycled 3 km/hr slower, he would have taken 2 hours more to reach the destination. Find his actual speed in km/hr.Read the answer and worked solution →Complete the idea of a percentageRead the answer and worked solution →Ratios into percentagesRead the answer and worked solution →Order the steps of the unitary methodRead the answer and worked solution →What is the percentage taken OF?Read the answer and worked solution →True or false: percentages and their baseRead the answer and worked solution →Match each comparison to its formRead the answer and worked solution →Common percentage conversionsRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Tap every correct way to express one quarterRead the answer and worked solution →Flip and pair: fraction with percentageRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →True or false: the unitary methodRead the answer and worked solution →Ratio, fraction, or percentage?Read the answer and worked solution →Complete the comparison chainRead the answer and worked solution →Percentage of a quantityRead the answer and worked solution →Order the steps: turn a part into a percentageRead the answer and worked solution →Assertion and reason: comparisonsRead the answer and worked solution →

Worked practice questions

Bishan cycled 120 km at a fixed speed. Had he cycled 3 km/hr slower, he would have taken 2 hours more to reach the destination. Find his actual speed in km/hr.

  1. 12
  2. 10
  3. 8
  4. 15
Show answer and solution

Correct answer: D. 15

1. Let actual speed be v. Then 120/(v−3) − 120/v = 2. 2. Testing v = 15: 120/12 − 120/15 = 10 − 8 = 2 hours. 3. The condition is satisfied, so actual speed = 15 km/hr. _Source: RRB Group D CEN-02/2018 PYQ, Q.78._

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Complete the idea of a percentage

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Missing parts
  1. Answer
    100
    Choices
    1. 100
    2. 10
    3. 1
  2. Answer
    20%
    Choices
    1. 20%
    2. 5%
    3. 25%
Complete the statement
A ratio compares two quantities. A percentage expresses that comparison out of {0}, which is why 5 oranges among 25 fruits is {1}.
A percentage is a comparison expressed out of 100. Source: syllabus Maths, Ch 7 Comparing Quantities.

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Ratios into percentages

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Questions
  1. Question
    5 oranges among 25 fruits is what percentage?
    Choices
    1. 5%
    2. 20%
    3. 25%
    Correct choice
    20%
  2. Question
    The ratio of 5 oranges to 20 apples simplifies to
    Choices
    1. 4 : 1
    2. 5 : 25
    3. 1 : 4
    Correct choice
    1 : 4
  3. Question
    So the apples number how many times the oranges?
    Choices
    1. 4 times
    2. 5 times
    3. one quarter
    Correct choice
    4 times
  4. Question
    20 apples among 25 fruits is
    Choices
    1. 20%
    2. 80%
    3. 25%
    Correct choice
    80%
The chapter's own basket: 20 apples and 5 oranges so 5 of the 25 fruits are oranges, which is 20%. Source: syllabus Maths, Ch 7 Comparing Quantities.

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More Quantitative Aptitude topics

MensurationMultiplicationNumber PropertiesSimple InterestSquares And RootsPercentagesNumber SystemRatio and Proportion