Maths practice for 14 year olds
Number of problems found: 6237
- Profit chain
If the manufacturer gains 10%, the wholesale dealer 15%, and the retailer 25% then what is the production cost of a washing machine whose retail price is 1000 eur? - The angles 6
If angles of a triangle are in the ratio 2 : 3 : 4. Find the value of each angle. - Triangular field
Find the area of a triangular field whose sides are 78m, 50m and 112m . - Money sharing
A sum of money is to be distributed among A, B, C, D in the proportion of 5 : 2 : 4 : 3. If C gets 1000 USD more than D, what is B's share?
- Income comparing
Arnold's income is 60% more than that of Brandy. By what percent is Brandy's income less than Arnolds's? - The population 3
The population of a town is 126800. It increases by 15% in the first year and decreases by 20% in the second year. What is the population of the town at the end of 2nd year? - Single discount
Find the single discount equivalent to two successive discounts of 20% and 10% . - Tax info
The tax-free price of the jacket is €150 and the VAT rate is 24%. Calculate the VAT and Taxable price. - A man 18
A man walks for t1 hours at 4 km/h and then for t2 hours at 3 km/h . If he walks altogether 29 km in 8 hours, find the value of t1 and t2 respectively.
- 280 oranges
280 oranges are divided among 50 girls and boys so that each boy gets 5 oranges and each girl gets 7 oranges. How many girls are there? - The mixture
If a 6 liters solution with concentration of 20% alcohol is mixed in a 4 liters solution of 60% concentration of alcohol. Find the percentage of alcohol in the mixture. - A provision
A John had provisions for a certain number of days. After 10 days 1/5 of the men desert and he is found that the provisions will now last just as long as before. How long was that? - Sum of squares
The product of two numbers is 12. If sum of their squares is 40, find the numbers. - An expensive watch
A watch when sold at a profit of 6% yields $ 870 more than when it is sold at a loss of 6% . Find the cost price of the watch.
- The bill 2
I paid 3/5 of a bill. If 400 USD of the bill is still due, what was the total amount of the bill? - Two towns
X and Y are two towns . A man goes from town X to town Y at an average speed of 30km/h and returns at the average speed 20km/h. Find the distance between the two towns if the man takes 10 hours on the whole. - The marbles
There are 10 red marbles, 6 green marbles, 4 blue marbles in a box. What is the probability of picking the next red marble? - The salary 4
The salary of a worker is first increased by 5% and then it is decreased by 5% . What is the change in his salary? - LCM and HCF 2
If product of two numbers is 5780 and their HCF is 17, then what is their LCM is?
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