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ATQ, We can say that 20% is = 20/100 = 1/5 Then C.P will be = 5, and S.P will be = 5 – 1 = 4 Therefore, (S.P/C.P) = 4/5 Then = (4/5) x (1000/640) = 5/4 Hence, profit % will be = (1/4) x 100 = 25%
A train takes 25 seconds more to cross a 750 metres long platform than it does to cross a 350 metres long bridge. If the time tak...
Fing the value of:
[(1024)(n/5) × (4)(2n+1) ] / [(16)n × (4)(n-1) ]
Find the value x2 + y2, if xy = 13 and x + y = 7.
If a2+2 = 2a
then find a4 - a3 + 2a2 -2a+ 9 = ?
Find the value of ‘x’ in the given expression:
(49/16)x× (64/343)x-1= 4/7
If x ,y,z are three integers such that x +y = 8,y +z =13 and z +x =17,then the value of x2 /yz is: