MEDIUM
CAT
IMPORTANT
Earn 100

The price of soap is collectively decided by five factors: raw materials, research, labour, advertisements and transportation. Assume that the functional relationship is: Price of soap=k×Raw material cost×Research cost×Labour cost×Advertising cost×Transportation cost. If there are respective changes of 20%, 20%, -20%, 25% and 10% in the five factors, then find the percentage change in the price of soap.

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Important Questions on Percentages

EASY
CAT
IMPORTANT
The ratio of Jim's salary for October to his salary for November was 9:8 and the ratio of the salary for November to that for December was 3:4. The worker got 40 more for December than for October and received a bonus constituting 40% of the salary for three months. Find the bonus.
EASY
CAT
IMPORTANT
Praveen goes to a shop to buy a sofa set costing 13080. The rate of sales tax is 10%. She tells the shopkeeper to reduce the price of the sofa set to such an extent that she has to pay 13080 inclusive of sales tax. Find the percentage reduction needed in the price of the sofa set to justify her requirement.
EASY
CAT
IMPORTANT
The price of a certain product was raised by 20% in India, The consumption of the same article was increased from 400 tons to 440 tons. By how much percent will the expenditure on the article rise in the Indian economy?
EASY
CAT
IMPORTANT
In the university examination last year, Samanyu scored 65% in English and 82%in History. What is the minimum percent he should score in Sociology, which is out of 50 marks (if English and History were for 100 marks each), if he aims at getting 78% overall?
EASY
CAT
IMPORTANT
King Dashratha, at his eleventh hour, called his three queens and distributed his gold in the following way. He gave 50% of his wealth to his first wife, 50% of the rest to his second wife and again 50% of the rest to his third wife. If their combined share is worth 130900 kg of gold, find the quantity of gold King Dashrath was having initially?
MEDIUM
CAT
IMPORTANT
The population of Swansea increases with a uniform rate of 8% per annum, but due to immigration, there is a further increase of population by 1% (however, this 1% increase in population is to be calculated on the population after the 8% increase and not on the previous year's population). Find what will be the percentage increase in population after two years. 
EASY
CAT
IMPORTANT
10% of Mexico's population migrated to South Asia, 10% of the remaining migrated to America and 10% of the rest migrated to Australia, such that the female population, which was left in Mexico, remained only 364500. Find the population of Mexico city before the migration and its effects, if it is given that before the migration the female population was half the male population and this ratio did not change after the migration?
EASY
CAT
IMPORTANT
Malti has M with her and her friend Chinki has C with her. Malti spends 12% of her money and Chinki also spends the same amount as Malti did. What percentage of her money did Chinki spend?