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to travel 708km,an express train takes 6 hours more than rajdhani train.if however,the speed of the express train is doubled,it takes 3 hours less than rajdhani train.what is the speed of rajdhani train?

which indian state is top in the production of cement?? i thought it was Andhra Pradesh..but from this app I read it as Rajasthan....

Xcube = 62-32,then find X 

hindi

3601 3602 1803 604 154

where do we find solutions for the questions?

Please explain , I think option 2 will be correct 

You should add puzzle with how the answer comes

Plz add kannada language papers plz

plz upload rrb alp, group D previous papers secundrabad