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Quantitative Aptitude Flashcards

6 cards from real Mettl practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Quantitative Aptitude flashcards as text

  1. A train travels 360 km in 4 hours. If it increases its speed by 20%, how long will it take to travel the same distance?

    Answer: 3 hours 20 minutes

    Original speed = 360/4 = 90 km/h. New speed = 90 × 1.20 = 108 km/h. Time = 360/108 = 3.33 hours = 3 hours 20 minutes.

  2. The ratio of boys to girls in a class is 3:2. If there are 30 students in total, how many are girls?

    Answer: 12

    Total ratio parts = 3+2 = 5. Girls = (2/5) × 30 = 12.

  3. What is the compound interest on ₹5000 at 10% per annum for 2 years?

    Answer: ₹1050

    CI = P(1+r)^t - P = 5000(1.1)^2 - 5000 = 5000(1.21) - 5000 = 6050 - 5000 = ₹1050.

  4. If 8 men can complete a piece of work in 20 days, how many days will 10 men take to complete the same work?

    Answer: 16 days

    Total work = 8 × 20 = 160 man-days. Days for 10 men = 160/10 = 16 days.

  5. A shopkeeper marks up his goods by 40% and then offers a 20% discount. What is his net profit percentage?

    Answer: 12%

    Let CP = 100. MP = 140. SP = 140 × 0.80 = 112. Profit% = (112-100)/100 × 100 = 12%.

  6. The average of five consecutive even numbers is 20. What is the smallest number in the sequence?

    Answer: 16

    For 5 consecutive even numbers, the middle (3rd) number equals the average = 20. So the numbers are 16, 18, 20, 22, 24. Smallest = 16.