cover?ii) A man walks at a speed of 1m/s and covers at certaindistance in some time. But, if he walks at a speed of 3m/s,he covers an additional distance of 15 m in the same time.What is the distance he actually covered?(242-5)

cover?ii) A man walks at a speed of 1m/s and covers at certaindistance

1.	cover?ii) A man walks at a speed of 1m/s and covers at certaindistance in some time. But, if he walks at a speed of 3m/s,he covers an additional distance of 15 m in the same time.What is the distance he actually covered?(242-5)
Answer» <p>= Let the actual distance be x.</p><p>= Given,</p><p>= If man walks at 1 m/s ---- he covers x m</p><p>= If he walks at 3 m/s---- he covers x + 15 m</p><p>= x + 15 = 3 * x</p><p>= - 2 x = - 15</p><p>= x = 7.5 m</p> <p>but how x+15=3*x</p>