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ANSWERS - HURDLE 18 : DISTANCE , TIME AND SPEED

Ans 1. 4000

Ans 2. 4620

Ans 3. 5192

Ans 4. 5796

Ans 5. 6336

Ans 6.6900

Ans 7 . 7488

Ans 8 . 7050

Ans 9. 8856

Ans 10. 2958

Ans 11. 2400

Ans 12. 1625

Ans 13. 4224

Ans 14. 7467

Ans 15. 3348

Ans 16. 2176

Ans 17. 2820

Ans 18. 2755

Ans 19. C , Ans 20. B , Ans 21. E , Ans 22 . D , Ans 23. H , Ans 24. J,

Ans 25. D , Ans 26 . C , Ans 27. E , Ans 28 . B , Ans 29. B

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SOLUTIONS ( ALSO SEE SHORT CUT AFTER THAT ) :

ANS1. Let the distance be D
so Time1= D/50
Time2= D/40
Time1-Time2=20
so D/50-D/40=20
solving the equation we get D=4,000

ANS2. Let the distance be D
so Time1= D/55
Time2= D/42
Time1-Time2=26
so D/55-D/42=26
solving the equation we get D=4,620

SHORT CUT for such problems:
D= (Time_Difference * Speed1 *Speed2)/ (Speed1 - Speed2)

ANS1= 20*50*40/(50-40)= 4,000
ANS 2.= 26*55*42/(55-42)= 4,620
ANS 3.= 30*59*44 /(59-44)= 5,192
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Hurdle 18 :Distance ,Time & Speed
Q1 to Q6 are compulsory. Attempt any 6 out of Q7 to Q18. Q19 to Q29 are compulsory.
Hurdle18.htm

  Hurdle 19 : Sale and Purchase
Please follow these rules strictly :
1) Mention the time taken to solve the hurdle at the beginning.
Hurdle19.htm
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