Step-by-step explanation:
The answer is in the image
For every 8 cars there are 7 trucks
Therefore,
Cars:Truck=8:7
Answer is B)8:7
Speed=Distance/time
Here,
distance=15m
time=1sec
speed=15/1=15m/sec
Distance=Speed*time
time=15min=15*60sec=900sec
Distance travelled in 15 min=15*900=13,500m
=13500/1000 km=13.5Km
Area of rectangle= L*b
here,
L=12.4 cm
b= 8.8 cm
A= L*b
= 12.4 * 8.8 = 109.12 cm^2
We can put the numbers in ascending order-
36, 38, 39, 39, 40, 47, 48, 51
Range=max-min
=51-36
=15
(1 or 7) ; number of possible outcome = 2
(a, e, i, o, or u) ; number of possible outcome = 5
So,
Number of possible outcomes = 2 x 5
Number of possible outcome =10
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