Maths practice for 14 year olds - page 14 of 369

Number of problems found: 7365

Slant height 3
The frustum of a right circular cone has the diameters of base 10 cm of top 6 cm and a height of 5 cm. Find the slant height.
Two angles
If one angle of a parallelogram is 24° less than twice the smallest angle, then find the largest angle of the parallelogram.
Two numbers at a ratio
If 1.5x = 0.04y, then find the value of {(y - x)/(y + x)}.
Students 48
If 80% of the students of a school are boys and 225 are girls, find the number of all students.
Three workers
A can do a work in 16 hours, and B alone in 24 hours. If A, B, and C work together and finish it in 8 hours, then C alone can finish it in how many hours?
A man 19
A man buys apples at a certain price per dozen and sells them at eight times that price per hundred, find his gain or loss percent
Adjust numerators
If the numerator of a fraction is increased by 2 and the denominator by 1, it becomes 5/8. If the numerator and the denominator of the same fraction are each increased by 1, the fraction becomes 1/2. Find the fraction.
Increase and decrease
A number is first increased by 20% and the resulting number is then decreased by 10%. Find the overall change in the number as percent.
A,B,C,D
A, B, C, D are four consecutive odd integers and their average is 42. What is the product of B and D?
Secondary 5
Secondary Middle School has 1200 students. Each student takes 5 classes a day. Each teacher teaches 4 classes. Each class has 30 students and 1 teacher. How many teachers are there at Secondary Middle School?
Smaller square
Let the points A, B, C and D are midpoints of the sides of the square PQRS. If the area of PQRS is 100 sq cm, what is the area of the smaller square ABCD?
A trader
A trader sold two saree at Rs 96 each & it causes the same% of profit and loss to each saree. If, as a whole he gets total loss of 4%, then what is the gain/loss% in the sale?
A thief
A thief is spotted by a policeman from a distance of 100 metres. When the policeman starts the chase, the thief also starts running. If the speed of the thief be 8 km/hr and that of the policeman 10 km/hr . How far the thief will have run before he is ove
The price 9
The price of sugar is increased by 25%. Find by how much percent a family must reduce their consumption so that their expenditure may increase only by 10%.
Two parts of a run
Adam can cover a certain distance in 1 hour 24 min by covering two-thirds at 4 km/hr and the rest at 5 km/hr. Find the total distance.
Percentages 14
If 20% of a number is 40, what is 30% of the same number?
Bus vs train 2
The average speed of a bus is three-fourths the average speed of a train. The train covers 240 km in 12 hours. How much distance will the bus cover in 7 hours?
A boat
A boat covers 20 km in an hour downstream and covers the same distance in 2 hours upstream. Then, find the speed of the boat in still water and the speed of the stream.
Same expenses
If the price of tea increases by 20%, what percent must the consumption be reduced to keep the expense the same?
Girls and boys
In a class of 50 there are 23 girls and 27 boys, what percent are a. Girls b. boys

Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.