Answer:
Step-by-step explanation:
let the numbers at unit,ten and hundred place be x,y,z respectively,then number=100z+10y+x
also x=4z
y=z+5
and x+y+z=17
4z+z+5+z=17
6z=17-5=12
z=2
y=2+5=7
x=2×4=8
number=100×2+10×7+8=278

(i)

(ii)

Step-by-step explanation:

height of ball (a) = 10m
fraction of height decreases by each bounce (r) = 2/3

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Answer:
15
Step-by-step explanation:
a^2 + b^2 = c^2
9^2 + 12^2 = 225

Hope this helps!!
87 x 73 = 6,351
2
87
x 73
____
1