Math practice for 13 year olds - page 148 of 413

Number of problems found: 8253

Escort vehicle pursuit
Behind the vehicle with an oversized load, which moves at an average speed of 16 km/h, they sent a second escort vehicle 2.5 hours later, which travels at an average speed of 70 km/h. At what time and at what distance does this vehicle reach the oversized
Eights of butter
How many eights of butter (1/8 of kg = 125 g) can be stored in a box with dimensions of 4 dm, 2 dm, and 1.8 dm if an eighth of butter has dimensions of 8 cm, 5 cm, 3 cm?
A farmer 3
A farmer sells 9.3 kg of pears and apples at the farmers market. 3/4 of this weight is pears, and the rest is apples. How many kilograms of apples did she sell at the farmer's market?
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.
What are 3
What are the two digits that, when inserted in the blank spaces, will make 234 _ _ divisible by 8?
Clothes 4
If the cost of 16.5 metres of cloth is ₹2,062.50, find the cost of 24.75 metres.
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
Cycling tourism
Among modern forms of relaxation and sport is cycling tourism. A group of pupils of a primary school together with their physics teacher decided to go on ordinary bicycles along the route from start place A to destination B. The teacher prepared a surpris
Two numbers 11
The sum of two rational numbers is (-2). If one of them is 3/5, find the other.
Quadrilateral eq3
Three sides of a quadrilateral are equal to the foreside, which is 16 cm long. What is the length of the one with equal sides if the perimeter is 58 cm?
Equivalent expression
Pablo rewrites the expression 8y-24 as 8(y-3). Hannah rewrites 8y-24 as 2(4y-12). Are Pablo's and Hannah's expressions each equivalent to 8y-24? Explain your reasoning.
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.
Picture 2
The picture free is 14.2 cm long and 10.4 cm wide. The frame has a uniform border of 2.6 cm. Find the area of the photograph.
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
A number 5
A number is divisible by 24, 25, and 120 if it is increased by 20. Find the number.
The cost 3
The cost of 2 ¾ liters of petrol is Rs 250 ½. What is the cost of 1 liter of petrol?
Markup
A store pays $370 for a bicycle. The percentage of markup is 19%. What is the selling price of the bike?
The area
The area of a rhombus is 143 m². If the longer diagonal is 26 m, find the shorter diagonal in inches named d1.
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?

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