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Ajay covers certain distance with his own speed but when he reduces his speed by 10kmph his time duration for the journey increases by 40 hours while if he increases his speed by 5 kmph from his original speed he takes 10 hours less than the original time taken. Find the distance covered by him. 
  • a)
     1000 km
  • b)
    1200 km
  • c)
    1500 km
  • d)
    1800 km
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Ajay covers certain distance with his own speed but when he reduces hi...
x/(y – 10)  – x/y = 40
x   = 4 y (y-10) — (i)
x/y  – x/(y + 5) = 10
x  = 2 y (y + 5) — (ii)
 From (i) and (ii) => y = 25; x = 1500
So option C is correct answer. 
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Most Upvoted Answer
Ajay covers certain distance with his own speed but when he reduces hi...
x/(y – 10)  – x/y = 40
x = 4y(y-10) —(i)
x/y  – x/(y + 5) = 10
x = 2y(y + 5) — (ii) From (i) and (ii) ⇒ y = 25; x = 1500
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Community Answer
Ajay covers certain distance with his own speed but when he reduces hi...
x/(y – 10)  – x/y = 40
x = 4y(y-10) —(i)
x/y  – x/(y + 5) = 10
x = 2y(y + 5) — (ii) From (i) and (ii) ⇒ y = 25; x = 1500
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Ajay covers certain distance with his own speed but when he reduces his speed by 10kmph his time duration for the journey increases by 40 hours while if he increases his speed by 5 kmphfrom his original speed he takes 10 hours less than the original time taken. Find the distance covered by him.a)1000 kmb)1200 kmc)1500 kmd)1800 kmCorrect answer is option 'C'. Can you explain this answer?
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