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Popular Word Problems >

A boat travelled at a constant speed for 9 hours, covering a total distance of 152 kilometres. To the nearest hundredth of a kilometre per hour, how fast was it going?

Solution

A b o a t t r a v e ll e d a t a co n s t an t s p ee d f or 9 h o u rs, co v er in g a t o t a l d i s t an ce o f 152 ki l o m e t res . T o t h e n e a res t h u n d re d t h o f a ki l o m e t re p er h o u r, h o w f a s t w a s i t g o in g ?

Solution

speed : 16 \frac{8}{9}

Solution steps

Translate the problem into an equation:

152 = x \cdot 9

Solve for

x, 152 = x \cdot 9 : x = \frac{152}{9}

Convert improper fractions to mixed numbers

speed : 16 \frac{8}{9}

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