If a ball falls from a height of 100 meters, it will bounce up 2 / 5 of the previous height How many meters is the first bounce? Answer with scores

If a ball falls from a height of 100 meters, it will bounce up 2 / 5 of the previous height How many meters is the first bounce? Answer with scores


The height of the first bounce is 40m, 2 / 5 of 100m
The height of the second bounce was 16m, 2 / 5 of 40m
The height of the third bounce is 2 / 5 of 16m and 6.4m



() kg is one third more than 48kg, () m is two fifths less than 100m


() kg is one third more than 48kg,
48 × (1 + 1 / 3) = 64 (kg)
() two fifths less than 100 meters
100 × (2 / 1-5) = 60 (m)



34 of 25 hectares___ Hectare___ 25 meters is 100 meters


25 × 34 = 310 (HA) & nbsp; & nbsp; & nbsp; 100 △ 25 = 250 (m), so fill 310250