Exam Maths Puzzle Numerical Ability

. The price of an article is reduced by 25% but the daily sale of the article is increased by 30%. The net effect on the daily sale receipts is...

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2.5% loss

If original price=p and Sale=s, then Sale receipt =p*s
With price reduced by 25% ,sale increased by 30%, sale receipt=(75/100)p*(130/100)s=0.975ps
So %net effect on sale receipt=(ps-0.975p)*100/ps=2.5% loss
9 years agoHelpfull: Yes(1) No(0)

There will be loss by 2.5%
By using successive percentage formula...
-25+30(-25*30)/100 = -2.5%
9 years agoHelpfull: Yes(1) No(0)
97.5 % that is decreasend by 2.5%
9 years agoHelpfull: Yes(0) No(0)
97.5 % that is decreasend by 2.5%
9 years agoHelpfull: Yes(0) No(0)

Exam Other Question

without stoppage a train travels a certain distance at 60 km/hr and with stoppage the same distance at speed of 40 km/hr. On an average how many minutes per hour does the train stops a can do a piece of work in 90 days, B in 40 days and C in 12 days . they work turn on the first day only A works on the second day only B and on the third day only c and then repeats A again and so on. on the finishing of the work a sum of 240 Rs is paid to them Find the share of B.