Maths practice for 14 year olds - page 119 of 362
Number of problems found: 7236
- A diesel car
A diesel car costs $2599 more than an unleaded petrol car and travels an average of 25,000 km per year. Diesel petrol has a consumption rate of 7.4 L per 100 km and costs $1.39 per liter. Unleaded gasoline has a consumption rate of 8.5 L per 100 km and co - The sum 16
The sum of A and B is 36. The difference between A & B is 8. Find the larger number. - Insurance 2
A house valued at 255,000 euros has been insured for 224,000 euros. What percent has it been insured? - The sum 15
The sum of the real numbers x and y is 24. Their difference is 12. What is the value of xy? - Regular price
The sale price of a television is 7200. The discount rate is 40%. Find its regular price. - The average 4
The average cost price of a car in Ireland is now €26,430, excluding VAT. If VAT is 23%, calculate the actual selling price of a car in 2021. - The sum 13
What is the sum of the exponents of the prime factors in the prime factorization of 196? - Sum and product
The sum of the real numbers x and y is 12. Their difference is 8. What is the value of xy? - Points OPQ
Point P is on line segment OQ. Given OP = 6, OQ = 4x - 3, and PQ = 3x, find the numerical length of OQ. - Trapezoids
In the isosceles trapezoid ABCD we know: AB||CD, |CD| = c = 8 cm, height h = 7 cm, |∠CAB| = 35°. Find the area of the trapezoid. - Diagonals of rhombus
Find the length of the diagonal AC of the rhombus ABCD if its perimeter P = 112 dm and the second diagonal BD has a length of 36 dm. - One of
One of the internal angles of the rhombus is 120°, and the shorter diagonal is 3.4 meters long. Find the perimeter of the rhombus. - The ratio 4
The ratio of two numbers is 5:4. If 40% of the first number is 12, what will be 50% of the second number? - Length 9
The length of a rectangle is 8 meters smaller than twice of breadth. If the perimeter of the rectangle is 50, find its length and breadth. - Cost structure
You are currently trying to decide between two cost structures for your business: one with a greater proportion of short-term fixed costs and another more heavily weighted to variable costs. Estimated revenue and cost data for each alternative are as foll - Dimensions of rectangle Find the dimensions of a rectangle, given that its perimeter is 110 cm. Its length is 1 cm, more than twice its width.
- Percent to interval
76% is between which the following two numbers. 1) 1/5 & 1/4. 2) 1/3 & 1/2 3) 2/3 & 7/10 4) 3/4 & 5/6 - Markup
A store pays $370 for a bicycle. The percentage of markup is 19%. What is the selling price of the bike? - Profit margin
If total sales for the month are $450,000 and the profit margin is 40%, how much was the cost of goods sold? - Using
Using the point-slope equation, find the equation containing (-7, 3) and slope m = -4
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