A) 2500

B) 1600

C) 1800

D) 2000

Answer:D) 2000

Explanation:Difference =55% - 35%=20% 20% =400 1%=20 100%=2000

Answer:B) 1600

Explanation: 50%=1000 1%=1000/50=20 80%=1600

A) 200/7

B) 220/7

C) 230/7

D) 240/7

Answer:A) 200/7

Explanation:By using formula Less % = r/100+r*100 = 40/100+40*100 = 40/140*100 = 200/7

A) 56%

B) 60%

C) 66.66%

D) 67.12%

Answer:C) 66.66%

Explanation:By using formula More % = 5000-3000/3000*100 = 2000/300*100 = 2/3*100 = 200/3 = 66.66%

A) 50%

B) 125%

D) None of these

Explanation:It means 10 is percentages of 15 (10/15*66)=66.66

Exercise 1

Exercise 2