general Maths Puzzle

A and B were going to school by cycle with 12 mile /hour speed A shouted "hey B see the same bus of blue color that we have seen 20 minutes back". B replied yes these buses come every 14 minutes on stop". Can you find the speed of bus?

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speed of bus = 40 miles per hr
12 years agoHelpfull: Yes(0) No(0)

general Other Question

A train travels at a particular speed for a duration of one hour, after which one of its engine malfunctions reducing its speed to 3/5th of the actual speed before the occurrence of fault in engine. It travels at this speed for 2 hours to reach at its destination. If the fault had occurred 50 miles later on, the train would have reached its destination 45 minutes early. Find the distance traveled by the train. Using only four 4s (compulsory use all 4s) and operators like + - * / ( ) ^ . SQRT ! and !!, make a number 55