A car travels a distance of 560 km in 9.5 hrs partially at a speed of 40 kmph and remaining at 160 kmph. What is the distance it travels at the speed of 160 kmph ?
A. 120 km
B. 240 km
C. 320 km
D. 360 km
E. 420 km
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(x/40)+(560-x)=19/2
4x+560-x =160 x 19/2
6x = 1920
x = 320
560-320=240 km
120
Let, the car travels x km. in 40 kmph. and (560-x) km. in 160 kmph.Total time = 9.5hrs.
By Condition, x/40+(560-x)/160 = 9.5 or, x=320 km.
Hence, distance travelled at the speed of 160 kmph.=(560-320)km = 240km.