Question

A car cover 12 3/2 km in 3 1/4 hours. find its speed.​

Answer 1

$\huge { \red { \boxed { \bf \blue{ \frac{54}{13} kmph}}}}$

Step-by-step explanation:

GIVEN :-

$\bf distance _{(covered \: by \: car)} = 12 \frac{3}{2} km \\ \\ \bf time_{(taken \: by \: car)} = 3 \frac{1}{4} h$

TO FIND :-

$\bf \large speed \: of \: the \: car.$

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SOLUTION :-

$\bf we \: know \: that, \\ \\ \bf \large speed = distance \div time \\ \\ \bf = 12 \frac{3}{2} km \div 3 \frac{1}{4} h \\ \\ = \bf\frac{(12 \times 2) + 3}{2} km \div \frac{(3 \times 4) + 1}{4} h \\ \\ \bf= \frac{24 + 3}{2} km \div \frac{12 + 1}{4} h \\ \\ \bf = \frac{27}{2} km \div \frac{13}{4} h \\ \\ = \bf \frac{27}{ \cancel{2}} \times \frac{ \cancel {4}^{ \: 2} }{13} kmph \\ \\ = \bf \frac{54}{13} kmph$

So,

$\bf \large speed \: of \: car = \frac{54}{13} kmph$

Hope it helps.

#BeBrainly :-)