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5 years ago
5 years ago
speed of the express train=distance÷(time taken by raajadhani +12)
S=648÷(RT+12)...................(1)
if speed of express is doubled then
2s=648÷(RT-6).....................(2)
by solving both equations we get time taken for raajadhani train to travel the distance of 648 kms.
by substituting the value of RT in above equations we get speed of raajadhani Tarin= 27 kmph.
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