to calculate pi you can use the Nilakantha Series.
Answer:
s. p = 270 Rs
discount = 10%
mp.= ?
Mp = s. p + discount
= 270 + 10/100*270
= 270 + 27
= 297 Rs
<h2>297 Rs is the marked price </h2>
Answer:
why does it say deleted acct
Step-by-step explanation:
if its deleted why is it still here
Speed = Distance / Time
Distance = Speed*Time
For this problem, we should bear in mind that current speed has an impact on the boat speed...
for upstream, the boat goes against the current, and so its speed is
U = V - C
where V is the speed of the boat
C is the current speed
for downstream, it will be:
D = V + C
Convert the problem into mathematical equations:
4D + 3U = 116
3D + 4U = 108
4(V+C) + 3(V-C) = 116
4V + 4C + 3V -3C =116
7V + C = 116
3(V+C) + 4(V-C) = 108
3V + 3C + 4V - 4C = 108
7V - C = 108
Solving the equations:
7V + C = 116
7V - C = 108
14V = 224
V = 16km/hr —-> speed of boat
to get C:
7(16) + C = 116
C = 4km/hr
