Question

The odometer of a car reads 1500 km at the start of a trip and 1860 km at the end of the trip that took 5 h. The average speed of the car is​

Answer 1

Explanation:

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Answer 2

$\large{ \mathrm{ \star{ \underline{ \underline{ \red{Question...}}}}}}$

$\large{ \bullet{ \mathrm{the \: odometer \: of \: car \: reads \: 1500 \: km \: at \: the \: start \: of \: a \: trip}}} \\ \large{ \mathrm{and \: 1860 \: km \: at \: the \: end \: of \: the \: trip \: that \: took \: 5 \: h.the \: average \: speed \: of \: car.}}$

$\large{ \mathrm{ \star{ \underline{ \underline{ \red{Answer...}}}}}}$

$\large{ \mathrm{average \: speed = 72 \: kmh {}^{ - 1} }}$

$\large{ \mathrm{ \star{ \underline{ \underline{ \red{Solution...}}}}}} \\ \\ \large{ \mathrm{ \underline{ \dag{ \purple{ \: given..}}}}} \\ \large{ \mathrm{ \to \: initial \: reading = 1500 \: km}} \\ \large{ \mathrm{ \to \: final \: reading = 1860km}} \\ \large{ \mathrm{ \to \: time \: taken = 5 \: hours}} \\ \\ \large{ \mathrm{ \dag{ \underline{ \purple{to \: find...}}}}} \\ \large{ \mathrm{ \to \: average \: speed}}$

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$\large{ \underline{ \green{ \mathrm{ \mapsto{u \: must \: know....}}}}} \\ \\ \large{ \boxed{ \red{ \mathrm{average \: speed = \frac{total \: distance}{total \: time \: taken} }}}} \\ \\ \large{ \mathrm{ \star{ \: total \: distance = final \: reading - initial \: reading}}} \\ : \large{ \mathrm{ \implies{ 1860 - 1500 = 360 \: km}}} \\ \\ \large{ \mathrm{ \star{ total \: time \: taken = 5 \: hours}}} \\ \\ \\ \large{ \mathrm{ \purple{ \mapsto{by \: using \: formula...}}}} \\ \\ : \large{ \mathrm{ \implies{average \: speed = \frac{360}{5} kmh {}^{ - 1} }}} \\ \\ : \large{ \mathrm{ \implies{ \boxed{ \pink{ average \: speed = 72 \: kmh {}^{ - 1} }}}}}$

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