EASY
CAT
IMPORTANT
Earn 100

Price of a commodity is first increased by x% and then decreased by x%. If the new price is K100, find the original price.

50% studentsanswered this correctly

Important Questions on Percentages

EASY
CAT
IMPORTANT
The salary of Sahir is increased by 4800 and the rate of tax is decreased by 2% from 12% to 10%. The effect is such that he is now paying the same tax as before. If in both the cases, the standard tax deduction is fixed at 20% of the total income, find the increased salary.
EASY
CAT
IMPORTANT
Seema goes to a shop to buy a radio costing 2568. The rate of sales tax is 7% and the final value is rounded off to the next higher integer. She tells the shopkeeper to reduce the price of the radio so that she has to pay 2568 inclusive of sales tax. Find the reduction needed in the price of radio.
MEDIUM
CAT
IMPORTANT
A company has 'n' employees in 2011. In 2012, 20% of the employees left the company while no one was hired. In 2013 and 2014, the number of employees again grew by 50% and 15% respectively. In 2015, the company fired 280 employees and at the end of 2015, the percentage increase in the number of employees from 2011 was found to be 10%. Find the number of employees at the end of year 2015.
MEDIUM
CAT
IMPORTANT
The price of raw material has gone up by 15%, labour cost has also increased from 25% of the cost of raw material to 30% of the cost of raw material. By how much percentage should there be a reduction in the usage of raw materials so as to keep the cost same?
MEDIUM
CAT
IMPORTANT
Mr. A is a computer programmer. He is assigned three jobs for which time allotted is in the ratio of 5:4:2 (jobs are needed to be done individually). But, due to some technical snag, 10% of the time allotted for each job gets wasted. Thereafter, owing to the lack of interest, he invest only 40%30% and 20% of the hours of what was actually allotted to do the three jobs individually. Find how much percentage of the total time allotted is the time invested by A?
MEDIUM
CAT
IMPORTANT
In the mock CAT paper at Mindworkzz, questions were asked in five sections. Out of the total students, 5% candidates cleared the cut-off in all sections, and 5% cleared none. Of the rest, 25% cleared only one section and 20% cleared four sections. If 24.5% of the entire candidates cleared two sections and 300 candidates cleared three sections, find out how many candidates appeared at the mock CAT at Mindworkzz?
MEDIUM
CAT
IMPORTANT
There are three galleries in a coal mine. On the first day, two galleries are operative and after some time, the third gallery is made operative. With this, the output of the mine became half as large again. What is the capacity of the second gallery as a percentage of the first, if it is given that a four-month output of the first and the third galleries was the same as the annual output of the second gallery?
HARD
CAT
IMPORTANT
10% of the salty sea-water contained in a flask was poured out into a beaker. After this, a part of the water contained in the beaker was vaporised by heating and due to this, the percentage of salt in the beaker increased by M times. If it is known that after the content of the beaker was poured into the flask, the percentage of salt in the flask increased by x%, find the original quantity of salty sea-water in the flask.