A car travels from calabar to Enugu, a distance of P km w...
A car travels from calabar to Enugu, a distance of P km with an average speed of U km per hour and continues to benin, a distance of Q km, with an average speed of Wkm per hour. Find its average speed from Calabar to Benin
(p+q)pw+qu
uw(p+q)pw+qu
uw(p+q)pw
uwpw+qu
Correct answer is B
Average speed = totalDistanceTotalTime
from Calabar to Enugu in time t1, hence
t1 = PU also from Enugu to Benin
t2 qw
Av. speed = p+qt1+t2=p+q∗pu+qw
= p + q x uwpw+qu
= uw(p+q)pw+qu
The volume of a cylindrical tank, 10m high is 385 m2. Find the diameter of the tank. [Take \(\p...
If 2x - 3y = -11 and 3x + 2y = 3, evaluate (y−x)2...
Evaluate using the logarithm table, log(0.65)2...
Find the value of y if 402y=102ten...
Calculate the total surface area of a cupboard which measures 12cm by 10cm by 8cm ...
Find the sum of the first 18 terms of the progression 3, 6, 12...... ...
Find the value of k if 5+2r(r+1)(r−2) expressed in partial fraction is \(\frac{k}...
A girl walks 45 meters in the direction 050o from a point Q to a point X. She then walks 24 met...