Question

percentage :-

i) price of rice was increased by 25% if by how much percent should price of rise should be reduce to bring it to its original price?
ii) price of sugar increases by 10% find how much percent a house wife must reduce his consumption of sugar so as not to increase her monthly bill?
iii) the price of scooter in2009 was ₹ 30,000 it increased by 10% in 2010 and again increased by 15% in 2011. what was the price of the motor cycle in 2011
iv) in an examination 25% candidates failed in mathematics and 20% students failed in English if 5% students failed in both the subjects find the percentage of students who passed in both the subjects
v) in a factory there are 100 workers 60% of them are men and rest are women if 30% of them are married find the number of married women
vi) an alloy consists of 30% zinc 45% nickel and the rest copper find the mass of copper in 800g of an alloy ​

Answer 1

Answer:

20% should be the correct answer.