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13 came by a fast train @60 km/hr and I’ll go back by a slow train @ 40 km/hr. Find the average speed of my journey
(a) 50
By Alaia

13 came by a fast train @60 km/hr and I’ll go back by a slow train @ 40 km/hr. Find the average speed of my journey
(a) 50
(6) 48
(C) 51 (d) 49.4 (e) Data Insufficient

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Alaia

The thing, above all, that a teacher should endeavour to produce in his pupils if democracy is to survive, is

the kind

Express these numbers in the standard form :
387000000

explanation: please answer step by step​

2 thoughts on “13 came by a fast train @60 km/hr and I’ll go back by a slow train @ 40 km/hr. Find the average speed of my journey<br /> (a) 50<b”

  2. Answer:

    Choose the correct answer: On simplification (a + b)(a – b) – a² + b2 gives :

    a) 2a? – 2b2

    c) 0

    b) 2a2 + 2b2

    d) 262

    plz answer this problem and who will answer I will mark as brainlist and thanks him…

    Reply

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