Question

can you make notes on

>•Formulas based on
Ratio and Proportion, Time and Work,
Speed, Distance and Time, Percentage,
Profit and Loss, Discount​

Answer 1

$\boxed{\begin{minipage}{7 cm}</p><p> \boxed{\underline{\underline{\bigstar\:\bf\:profit\:and\:loss\:\bigstar}}}\\\\1) Profit = SP - CP\\\\2) Loss = CP - SP\\\\3) Profit\% = (Profit in Rs.)*100/CP\\\\4) Loss\% = (Loss in Rs.)*100/CP\\\\5) SP = CP*(100+P\%)/100\\\\</p><p>6) SP = CP*(100-L\%)/100\\\\7) CP = SP*100/(100+P\%)\\\\8) CP = SP*100/(100-L\%)\\\\9) Discount = MP - SP\\\\10) Discount\% = (Discount in Rs.)*100/MP\\\\11) SP = MP*(100-D\%)/100\\\\12) MP = SP*100/(100-D\%)\\\\\end{minipage}}$

$\boxed{\begin{minipage}{7 cm}\boxed{\underline{\underline{\bigstar\:\bf\:Time\:and\:Distance\:\bigstar}}}\\\\1) Distance = Speed * Time\\\\2) Speed = Distance/Time\\\\3) Time = Distance/Speed\\\\4) Average Speed = 2*S1*S2/(S1+S2)\\\\5) Average Speed = Total Distance/Total Time\\\\6) Downstream Speed = Speed of boat + Speed of water\\\\7) Upstream Speed = Speed of Boat - Speed of water\\\\8) in same Direction Speed in Reduced and we subtract both speed .\\\\9) In opposite Direction Speed increased and we add both speed.\\\\10) When the speed is constant, time is directly proportional to distance.\\\\11)When time is constant, then speed is directly proportional to distance.\\\\12) When the distance is constant, then speed is inversely proportional to time.\\\\</p><p>\end{minipage}}$