Question

a man sold two cows for rs.2970 each.on one he gains 10% while on the other he loses 10%. how much percent does he gain or lose on the whole transaction?

Answer 1

Loss of 1% will be the answer

Answer 2

Heya friend,

SP of 1st cow = ₹2,970

Gain = 10%

CP = SP×100/100+Gain%

= 2,970×100/100+10

= 2,97,000/110

= ₹2,700



SP of 2nd cow = 2,970

Loss = 10%

CP = SP×100/100-Loss%

= 2,970×100/100-10

= 2,97,000/90

= ₹3,300


Total CP of both cows = ₹(2,700+3,300)

= ₹6,000

Total SP of both cows = ₹(2,970+2,970)

= ₹5,940

CP > SP = Loss

Loss = CP - SP

= ₹(6,000-5,940)

= ₹60

Loss % = Loss/CP × 100

= 60/6,000 × 100

= 1%








Thanks

With regards@

Tanisha