Question

A woman walks a certain distance in 84 minutes she covers two third of it at 4 km/h and the rest at 5 km/h find the total distance covered?​

Answer 1

$\small\sf{Given \:women\: walk \:a\: certain \:distance \:in\:84\:min }$$\small\sf{in \:the\: first \:two\:-\:thirds\: of\: the\:time\:she\:walked }$$\small\sf{at \:4 \:km\: ph.}$

• $\small\sf{So\: distance \:covered \:in\: 1 }^{st}\:\small\sf{ two\:-\:third \:is :}$

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$\small\sf{x\:=\:4\:kmph\:×}\:\small\sf\frac{ 2}{3}\:\sf\small{ ×\:84\: min}$

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$\sf\small{=\:4\:× }\:\sf\small\frac{2}{3}\:\sf\small{× }\:\sf\small\frac{84}{60}\:hr$

• $\sf\small{x\:=\:3.733 \:km}$

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$\sf\small{So\: remaining\: distance\: is:}$

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$\sf\small{y\:=\:5\:×}\:\sf\small\frac{ 1}{3}\:{× }\:\sf\small\frac{84}{60}$

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$\sf\small{=\:2.333 \:km}$

• $\sf\small\purple{\underline{\underline{\boxed{∴ \:Total \:distance \:=\:x\:+\:y\:=\:6.067 \:km}}}}$

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$\sf{\bold{IᴛsHappyQueen_࿐}}$