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RRB Group D Arithmetic Algebra Mensuration — practice questions

Explore 3 free Arithmetic Algebra Mensuration questions in RRB Group D Quantitative Aptitude. Open each question or exercise to read its content, reference answers and available explanation.

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Arithmetic Algebra Mensuration questions and exercises with answers

Showing questions 1–3 of 3.

A boat goes 16 km downstream in 2 hours and returns upstream in 4 hours. The speed of stream isRead the answer and worked solution →Key in the arithmetic answerRead the answer and worked solution →True or false: arithmeticRead the answer and worked solution →

Worked practice questions

A boat goes 16 km downstream in 2 hours and returns upstream in 4 hours. The speed of stream is

  1. 1 km/h
  2. 2 km/h
  3. 3 km/h
  4. 4 km/h
Show answer and solution

Correct answer: B. 2 km/h

Downstream speed = 16/2 = 8 km/h; upstream speed = 16/4 = 4 km/h. Stream speed = (8 - 4)/2 = 2 km/h. Boat speed in still water = (8 + 4)/2 = 6 km/h.

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Key in the arithmetic answer

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Questions
  1. Answer
    15
    Question
    An item marked 840 is sold for 714. What is the discount per cent?
  2. Answer
    200
    Question
    A bag marked 250 has a 20 per cent discount. What is the sale price?
  3. Answer
    3000
    Question
    Simple interest on 10000 at 15 per cent for 2 years?
  4. Answer
    25
    Question
    An article bought for 400 is sold for 500. What is the profit per cent?
Instructions
Work out each answer and key it in on the pad.
_Source: syllabus Maths Ch7 Comparing Quantities, 7.2 Finding Discounts_

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True or false: arithmetic

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Questions
  1. Statement is true
    Yes
    Statement
    Discount is always worked out on the marked price.
  2. Statement is true
    Yes
    Statement
    Profit per cent is always worked out on the cost price.
  3. Statement is true
    No
    Statement
    Marking up 25 per cent then giving 20 per cent off leaves a 5 per cent profit.
  4. Statement is true
    Yes
    Statement
    Compound interest is charged on the amount of the previous year.
Instructions
Decide whether each statement is true or false.
_Source: syllabus Maths Ch7 Comparing Quantities, 7.2 Finding Discounts_

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More Quantitative Aptitude topics

Simple InterestNumber SystemRatio and ProportionTime and WorkProfit and LossSquare RootsProfit LossBasic Arithmetic