In a 500m race, the ratio of speeds of two contestants A and B is 3: 4. A has a start of 140m. Then A wins by-

Created: 4 months ago | Updated: 2 months ago
Job Solution Combined Bank (সমন্বিত ব্যাংক) সমন্বিত ১০ ব্যাংক ও আর্থিক প্রতিষ্ঠান || অফিসার (জেনারেল) (08-03-2024) গণিত
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To reach the winning post A will have to cover a distance of (500 - 140)m, = 360 m.
While A covers 3 m, B covers 4 m.
While A covers 360 m, B covers

(4/3×360)

  m = 480 m.
Thus, when A reaches the winning post, B covers 480 m and therefore remains 20 m behind.
∴ A wins by 20 m.

4 months ago
1 0
চায়োট
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To reach the winning post A will have to cover a distance of (500−140)m=360m.

As the ratio of speeds is 3:4

A covers 3m, B covers 4m.

While A covers 360m, B covers 43×360=480m.

Thus, when A reaches the winning post, B covers 480m and therefore remains (500−480)m behind.

∴A wins by 20m.

4 months ago
1 0
ল্যাভেন্ডার

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