Equations practice problems - page 8 of 236
Number of problems found: 4708
- A man 21
A man sells a bicycle at a profit of 25%. Had he bought it at a price less by 25% and sold it at 250 euro less then also he could have made a profit of 25%. Find cost price. - Mean proportional
If x+7 is the mean proportional between (x+3) and (x+12), find the value of x . - The common difference
Find the common difference of an arithmetic progression (AP), whose 1st term is 5 and the sum of its 1st 4 terms is half the sum of the next four terms. - Three girls
Rs.1400 is divided among Amla, Bimla, and Simla so that Amla receives half as much as Bimla, and Bimla receives half as much as Simla. Then Simla's share is: - The length 19
The length and the width of a rectangle are (x+2) and (x-3). If it area is 24cm², what are its dimensions? - Billy 2
Billy has 3/4 of the money Derek has, and Derek has 7/9 of the Jason has. If they have a total of $680. How much does each person has? - A passenger
A passenger train, 150 m long, passes a railway platform, 200 m long, in 35 seconds. Find: 1) speed of the train in km/h 2) the time taken by the train to pass a man cycling in the direction of the train at the rate of 9 km/h.
- An election
In an election between two candidates, one candidate secured 43% of the total votes polled and lost the election by 4900 votes. Find the total number of votes polled. - Telephones
The cost of manufacturing x telephones by Josh Mobiles is given by C = 500 + 45x, and the revenue from selling these are given by R = 65x. How many telephones must be produced and sold in order to realize a profit? - The difference 8
The difference between the ages of two brothers is 10 years, and 15 years ago their ages were in the ratio 2:1.Find the ratio of their ages 15 years hence . - A man 20
A man sells an article at successive discounts of 10% and 5% on the listed price. Another man sells the same article at a discount of 15%.If the difference between the two selling prices be Rs 24, find the listed price of the article. - Number 77
Find a number which is as much greater than 31 as it is less than 77. Many failed to do it! - Two men
2 men or 3 women can do a piece of work in 45 days. Find, in how many days 6 men and 1 women be able to complete the same work. - The sum 48
The sum of a number and its reciprocal is 5.2. Find the number. - A positive A positive number plus itself squared is 240. What is the number? Please show your work.
- Milk mixture
In a container, milk and water are 7:5. If 15 L water is added, the ratio becomes 7:8. Find the quantity of water in the new mixture. - The average 14 The average of the present ages of Susan and Beata is 36 years .If Susan is 8 years older than Beata. What is the Beata's present age?
- A piece of work 12 men or 18 women can do a piece of work in 14 days, then how long 8 men and 16 women take to finish the work?
- A reduction
A 40% reduction in the price of mango would enable a buyer to get 2 kg more for Rs 90. Find the initial/original price of mango per kg. - The average 13 The average of 6 consecutive odd numbers is 64. Find the greatest number.
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