A car covers a certain distance taking 7 hours in forward
journey. During the return journey, speed was increased by
12 kmph and it takes 5 hours. What is total distance covered?

(a) 210 km

(b) 70 km

(c) 440 km

(d) 220 km

(e) None of these

Answer Posted / santhya

let the speed of the car be xkm/h during the up journey...
total distance travelled ill remain same ,ie
7*x=(x+12)*5
or,x=30 km/hr
so distance travld= 7*30=210;

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