hamburger menu
All Coursesall course arrow
adda247
reward-icon
adda247
    arrow
    arrow
    arrow
    While covering a distance of 54 km, a man noticed that after cycling for 1 hour 15 minutes, the distance covered by him was 79\frac{7}{9}97​&nbsp
    Question

    While covering a distance of 54 km, a man noticed that after cycling for 1 hour 15 minutes, the distance covered by him was 79\frac{7}{9} of the remaining distance. What was his speed (in km/hr)?​

    A.

    18.7

    B.

    18.9

    C.

    19.9

    D.

    19.5

    Correct option is B

    Given:

    Total distance = 54 km
    Time = 1 hr 15 min = 1.25 hr
    Distance covered =79= \frac{7}{9}​ of the remaining distance

    Formula used:
    Speed = Distance ÷ Time

    Solution:
    Let distance covered = x km
    Then remaining distance = 54 - x
    x =79 \frac{7}{9} ​× (54 - x)

    9x = 7(54 - x)
    9x = 378 - 7x
    9x + 7x = 378
    16x = 378
    x = 378 ÷ 16 = 23.625 km

    Speed = 23.625 ÷ 1.25 = 18.9 km/hr

    Free Tests

    Free
    Must Attempt

    CBT-1 Full Mock Test 1

    languageIcon English
    • pdpQsnIcon100 Questions
    • pdpsheetsIcon100 Marks
    • timerIcon90 Mins
    languageIcon English
    Free
    Must Attempt

    RRB NTPC UG Level PYP (Held on 7 Aug 2025 S1)

    languageIcon English
    • pdpQsnIcon100 Questions
    • pdpsheetsIcon100 Marks
    • timerIcon90 Mins
    languageIcon English
    Free
    Must Attempt

    CBT-1 General Awareness Section Test 1

    languageIcon English
    • pdpQsnIcon40 Questions
    • pdpsheetsIcon30 Marks
    • timerIcon25 Mins
    languageIcon English

    Similar Questions

    test-prime-package

    Access ‘RRB NTPC’ Mock Tests with

    • 60000+ Mocks and Previous Year Papers
    • Unlimited Re-Attempts
    • Personalised Report Card
    • 500% Refund on Final Selection
    • Largest Community
    students-icon
    383k+ students have already unlocked exclusive benefits with Test Prime!
    Our Plans
    Monthsup-arrow