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    two circular tracks t1 and t2 of radii 100 m and 20 m, respectively touch at a point a. starting from a at the same time, ram and rahim are walking on track t1 and track t2 at speeds 15 km/hr and 5 km/hr respectively. the number of full rounds that ram will make before he meets rahim again for the first time is

    Mohammed

    Guys, does anyone know the answer?

    get two circular tracks t1 and t2 of radii 100 m and 20 m, respectively touch at a point a. starting from a at the same time, ram and rahim are walking on track t1 and track t2 at speeds 15 km/hr and 5 km/hr respectively. the number of full rounds that ram will make before he meets rahim again for the first time is from screen.

    [Solution] Two circular tracks T1 and T2 of radii 100 m and 20 m, respectively touch at a point A. Starting from A at the same time, Ram and Rahim are walking on track T1 and track T2 at speeds 15 km/hr and 5 km/hr respectively. The number of full rounds that Ram will make before he meets Rahim again for the first time is

    Two circular tracks T1 and T2 of radii 100 m and 20 m, respectively touch at a point A. Starting from A at the same time, Ram and Rahim are walking on track T1 and track T2 at speeds 15 km/hr and 5 km/hr respectively. The number of full rounds that Ram will make before he meets Rahim again for the first time is - To complete one round Ram takes 100m/15kmph and Rahim takes 20m/5kmph They meet for the first time after L.C.M of (100m/15kmph , 20m/5kmph) = 100m/5kmph=20m/kmph. Distance traveled by Ram =20m/kmph * 15kmph =300m. So, he must have ran 300/100=3 rounds. **Note:** CAT gave both 2 and 3 as correct answers because of the word '**before**'.

    CAT 2020 Slot 2 Question 64

    Question 64

    Two circular tracks T1 and T2 of radii 100 m and 20 m, respectively touch at a point A. Starting from A at the same time, Ram and Rahim are walking on track T1 and track T2 at speeds 15 km/hr and 5 km/hr respectively. The number of full rounds that Ram will make before he meets Rahim again for the first time is

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    Solution

    To complete one round Ram takes 100m/15kmph and Rahim takes 20m/5kmph

    They meet for the first time after L.C.M of (100m/15kmph , 20m/5kmph) = 100m/5kmph=20m/kmph.

    Distance traveled by Ram =20m/kmph * 15kmph =300m.

    So, he must have ran 300/100=3 rounds.

    Note:

    CAT gave both 2 and 3 as correct answers because of the word 'before'.

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    Quantitative Aptitude

    Quantitative Aptitude - TSD - Two circular tracks T1 and T2 of radii 100 m and 20 m Slot - 2 - Quantitative Aptitude - TSD - Two circular tracks T1 and T2 of radii 100 m and 20 m Q. Two circular tracks T1 and T2 of radii 100 m and 20 m, respectively touch at a point A.

    Quantitative Aptitude – TSD – Two circular tracks T1 and T2 of radii 100 m and 20 m

    Quantitative Aptitude – TSD – Two circular tracks T1 and T2 of radii 100 m and 20 m Slot – 2 – Quantitative Aptitude – TSD – Two circular tracks T1 and T2 of radii 100 m and 20 m

    Q. Two circular tracks T1 and T2 of radii 100 m and 20 m, respectively touch at a point A. Starting from A at the same time, Ram and Rahim are walking on track T1 and track T2 at speeds 15 km/hr and 5 km/hr respectively. The number of full rounds that Ram will make before he meets Rahim again for the first time is ?

    3 2 4 5

    Answer: 3Solutions:

    Length of track T1 = Circumference of T1 = 2πr=2×3.14×100=614

    Length of track T2 = Circumference of T2 = 2πr=2×3.14×20=122.8

    So ratio of length = 614/122.8 = 5:1

    Ratio of speed = 15 : 5 = 3:1

    Ratio of time to cover their respective track = 5/3 : 1 = 5:3

    Thus when Ram will make 3 rounds of T1 Rahim will make 5 round of T2 and they will meet at A again.

    Thus the required answer = 3

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    [Solved] Two circular tracks T1 and T2 of radii 100 m and 20 m, respe

    Calculation: Circumference of T1 = 2πr1 = 2 × 3.14 × 100 = 614 Circumference of T2 = 2πr2 = 2 × 3.14 × 20 = 122.8 Ratio of leng

    Home Quantitative Aptitude Speed Time and Distance

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    Two circular tracks T1 and T2 of radii 100 m and 20 m, respectively touch at a point A. Starting from A at the same time, Ram and Rahim are walking on track T1 and track T2 at speeds 15 km/hr and 5 km/hr respectively. The number of full rounds that Ram will make before he meets Rahim again for the first time is

    2 5 3 4

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    Calculation:

    Circumference of T1 = 2πr1 = 2 × 3.14 × 100 = 614

    Circumference of T2 = 2πr2 = 2 × 3.14 × 20 = 122.8

    Ratio of length = 614 : 122.8 = 5 : 1

    Speed ratio = 15 : 5 = 3 : 1

    Ratio of time to cover the tracks = (5/3) : 1 = 5 : 3

    When Ram will make 3 rounds of T1 Rahim will make 5 round of T2 so both will meet again at point A

    ∴ The number of full rounds that Ram makes before he meets Rahim for the first time time is 3.

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