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The two numbers M and N are such that 60% of M is equal to the 20% of N then N= ? % of M.
The population of the city is 6000 and \(\dfrac{3}{12}th \) of the population is male and rest of them are female. If the 38% of the male are married then the percentage of married female in the city is
Number of male
Number of female
Number of married male
% of married female
The price of the different articles in the market remains varying with the time. Mary went to the mall and purchased some pulse and milk from there. She purchased 2 kg of pulse and 8 kg of milk for ₹900. After one month the price of pulse rose by 20% and that of milk by 50% so she has to pay ₹1040 for the same quantity of the same article she purchased. Find the price per kg of pulse.
Let the cost of one kg of pulse be ₹ x and that of milk be ₹ y.
Cost of 2 kg pulse and 8 kg of milk = 2x + 8y=900
After increase in price the cost will be
1.2x + 12y = 1040
On solving
x = 172.4 and y = 69.4
By selling 32 orange for ₹30 a man losses 25%. How many oranges should be sold for ₹24 so as to gain 20% in the transaction.
Number of oranges
If the cost price of 20 greeting cards is equal to the selling price of 16 greeting cards. Find the gain or loss percent.
CP of each card be ₹ x.
CP of 16 greeting cards = ₹ 16x
SP of 16 greeting cards = ₹ 20x
Gain = (2016)x = ₹ 4x
Gain
Jack purchases a table for ₹4500 through auction. He finds that the dealer pays the auctioneers 10% on the S.P and still makes the profit of 10% on the whole transaction. Find the CP of the table.
SP of the table = ₹ 4500
Amount paid to the auctioneer
Money received by the dealer
CP
Ram lent ₹ 10,000 on \(\mathrm{1^{st}\ January\ 2000}\) to his friend Robert at 5% simple interest which amounts to ₹18000 after certain period of time. Find the date on which he will get the amount
If m, n, p are the three sums of money such that n is the simple interest on m and p is the simple interest on n for the same time period and at the same rate of interest. The relation among m, n, p is
Dividing both the equations
Ratio of 250 ml to 2l is
250 ml : 2000 ml = 1:8
The ratio of the income of Ram and Rohan is 2:3. If Ram’s income is ₹ 9000 then rohan’s income is
Rohan’s income Ram’s income
The price of an article diminished twice successively first by 30% and then by 40%. If the original price was ₹ 1000 what is it now?
A person sells 36 oranges per rupee and incur a loss of 4% find how many oranges per rupee to be sold to have a gain of 8% ?
Customer saves ₹15 when a discount of 20% on the marked price is offered what did he pay for the article?
At what rate of interest per annum will a sum double itself in 8 years ?
In what time will ₹ 72 become ₹ 81 at \( 6\dfrac{1}{4}\%\) p.a SI?
The price of wheat has increased by 60%. In order to restore the original price, the new price must be reduced by
Reduction
\( \mathrm{\dfrac{a}{b}=\dfrac{c}{d}\ then\ \dfrac{ma+nc}{mb+nd}}=\)
Let
A boy has enough money to buy books if each book costs 25 paise less, he could buy two more books and still have 70 paise left. The money he has is
Let the original cost of each book = ₹ x
So,
Find the sum of money which increases by \( \dfrac{1}{10}\) of itself every year and amounts to ₹450 in 5 years.
Let the sum be ₹ 100
Amount = ₹ 450
The ratio of the ages of A and B ten years before was 3:5. The ratio of their present age is 2:3, their ages are respectively.
Let the present age of A and B be x and y years
From equation (1)
And from —(2)
Putting the value of y
\(\dfrac{2}{5} \) of total number of students of a school come by car while \(\dfrac{1}{4} \) of students come by bus. All the other students walk to school of which \( \dfrac{1}{3}\) walk on their own and the rest are escorted by their parents. If 224 students come to school walking on their own, how many students study in that school?
Let the total number of students in school = x
S
tudents that come to school by car
Students that come to school by bus
Remaining students
Students walk on their own
Rohit bought a second hand car for ₹2,25,000 and spend ₹ 25000 for repairing. If he sold it for ₹ 3,25,000
What is his profit percent?
₹ 8000 invested at compound interest gives ₹ 1261 as interest per annum is
The compound interest on ₹ 30000 at 7% p, a is ₹ 4347. The period in years is
On solving we get
Reema types 540 words during half an hour. How many words would she type in 6 minutes?
Number of words 540x
Time (in minutes) 306
Subham plans to grow trees. If he increases the number of trees by 10% per year. After 2 years he finds that the number of trees is 14641, find the number of trees.
Number of trees two years back
The population of the city is 6000 and \(\dfrac{3^{th}}{12} \) of the population is male and rest of them are female. If the 38% of the male are married then the percentage of married female in the city is
Number of married male
of married female
30% of people like basket ball, 50% like cricket, 10% like hockey and rest like other games. If the total population is 10 lakhs them the number of people who like other games is
% of people who like other games = 50%
Number of people who like other games
If the salary of one employee is 50% more than other. Then by what percent other’s salary is of first salary
Let B’s salary be x
A’s salary
On a ₹ 10000 payment order. Rohit has choice between three successive discounts of 10%, 10% and 30% and three successive discounts of 40%, 5%, 5% by choosing the better one he can save ₹ ?
If the simple interest on a certain sum of money is oneninth of the principal and rate of interest is equal to the time for which interest is found, find the rate of interest on that sum of money.
Sohan invested a certain sum of money in a simple interest bond whose value grew to ₹600 at the end of 6 years and ₹800 at the end of another 10 years. What was the rate of interest?
Let the amount invested = ₹ x
Amount at the end of 6 years =₹ 600
Amount at the end of 10 years = ₹ 800
Interest earned for 5 years = ₹ 200
Interest earned for a year = ₹ 50
Interest earned for 6 years
Sunita invested ₹15000 in a finance company which claims money growth of one fifth of itself. It promised to pay the compound interest compounded quarterly. Find the amount she will get
Nitasha purchased a second hand scooty from her friend for ₹ 4000 on credit. If she pays the interest for the first year at the rate of 5% and for the second year at the rate of 15%. The cost of scooty is
So, the cost of scooty is ₹ 4830
Three numbers a, b, c such that a:b = 4:5, b:c=5:6 then the ratio of a:c is
Teacher gives some notebooks to Ram and Rita and asked them to share in the ratio 9:7. If Ram gets 16 notebooks more than Rita then find the number of notebooks given by the teacher.
Let the number of notebooks Ram has is equal to and ritu has is equal to .
Total number of notebooks
What annual instalment will discharge a debt of ₹ 2210 due in 4 years at 7% simple interest?
The population of a village is 8000. It increases by 10% during \(\mathrm{ 1^{st}}\) year and by 20% during \(\mathrm{ 2^{nd}}\) year. The population of village after 2 years is
A shopkeeper offers 10% discount on a bat and still makes a profit of 20%. Find the CP of the bat if the MP is ₹ 350
The difference between the CI and SI on a certain sum of money for 2 years at 7.5% p.a is ₹ 360. The sum is
On solving