If 40% of a number is 200,find the number
(200/40)*100=500
When 40 is added to 20% of a number,same number is obtained.Find the number
40/(100-20)*100=50
When 300% of a number is 120 ,find 150% of that number
(120/300)*150=60
When Raman sold a radio for Rs 600,40% loss occurred.Find the S.P if he wants a gain of 20%.
C.P=(600*100)/60=1000
Gain%=20%
S.P=(1000*120)/100=1200
Raju bought a shirt with 15% discount.Had he bought the shirt without discount,he would have paid Rs 60 more.Find CP of the shirt
CP=60*(85/15)=Rs 360
Ramesh’s income is more than Mahesh’s income by 20%.Then by how much percentage Mahesh’s income less than Ramesh’s income?
[20/(100+20)]*100=(20/120)*100=100/6=16.66%
The income of Anand is 25% less than income of Balu.Then by what percentage income of balu more than Anand.
[25/(100-25)]*100=(25/75)*100=100/3=33.33%
If a number is increased by 40% and decreased by 40%,what will be the result?
40-40-(40*40)/100=-16%,16% decrease
A man sold 2 mobile phones at the rate of 1500Rs each.If he gets a profit of 20% in one transaction and a loss of 20% in another transaction,find by what percent he lost or gained in the whole.
20-20-(20*20)/100=4% decrease
If length of a rectangle is increased by20% and breadth decreased by 10%,find change in area
20-10-(20*10)/100=10-2=8% increase
There are 500 students in a hostel.Of these,20% drink coffee.50% drink tea.10% drink both.Find the number of students who drink neither
100-(20+50-10)=40%
Number=500*(40/100)=200
There are 1000 people in a flat.40% read Malayalam Newspaper,20% read English,10% read both.Find the number of persons who read neither
100-(40+20-10)=50%
Number=50% of1000=500