111 | 1 | m |
9 |
When B runs 25 m, A runs | 45 | m. |
2 |
When B runs 1000 m, A runs | ❨ | 45 | x | 1 | x 1000 | ❩m | = 900 m. |
2 | 25 |
∴ B beats A by 100 m.
The shaded region represents
y ? x
Let 45 x A = (25 x 900)/100
? A = (25 x 9)/45 = 5
CP = [100/(100 - Loss%) ] x SP
CP = 6000 x (100/75) = 8000
NA
Angle swept in 30 min= 180°
Area swept = [(22/7) x 7 x 7] x [180°/360°] cm2
= 77 cm2
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