MATH BY PK SIR
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Speed . = x. 2x
Length = T1 T2
T1+T2/x = 1
x= T1 + T2
......
T2/x = 2/3
X= 3T2/2
...
3T2/2 = T1 + T2
3T2/2-T2 = T1
T2 = 2T1
T1/T2 = 2/1 ββ
2 983
90% ββ 3600
100% ββ- 4000
+200 5% profit
4200 SP
+336 8% tax on SP
4536 ansββ
pahle cp = 3600 / litre tha
loss ke baad = 4000/ltr hoga
