Math practice for 13 year olds - page 147 of 413

Number of problems found: 8260

Worker packing time
Four workers packed the goods with the same output in 6 hours. In how many hours would five workers do the same job? Express it in hours and minutes.
Coffee roasting proportion
We obtained 4200 g of roasted coffee from 5 kg of green coffee. How many g of green coffee do we need to roast to get 10 kg of roasted coffee?
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
Three integers
Three consecutive integers add up to 51. what are these integers?
The sum 16
The sum of A and B is 36. The difference between A & B is 8. Find the larger number.
Multiplicative inverse
Explain why the reciprocal of - 1 1/17 is the multiplicative inverse of - 17/18.
Two fraction equation
Find the d value of q in equation 30/16=q/48.
Insurance 2
A house valued at 255,000 euros has been insured for 224,000 euros. What percent has it been insured?
A class IV.C
In a class, 2/5 were boys. Thirty were girls. How many more girls than boys are there?
Calculate 20
Calculate the sum of 1/5 of a right angle, 3/4 of a right angle, and 3/4 of a straight angle.
Regular price
The sale price of a television is 7200. The discount rate is 40%. Find its regular price.
Taken away from number
18 is taken away from 8 times, and the number is 30. Find the number.
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?
Matilda
Matilda measures the perimeter of her bedroom to determine how many feet of border she needs for the tops of the walls. Two walls are each 96 inches long, and two walls are each 3 yards long. She pays $30 for a border that costs $1 per foot. What steps sh
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.
A trapezoid 3
A trapezoid ABCD has a base length of a = 120 mm, c = 86 mm, and an area A = 2,575 mm². Find the height of the trapezoid.
Ferdinand
Ferdinand went from place A to place B and from there to place C. A is 7.2 km from B, and B is 11.7 km from C. Albert went from place A to place D and from there to place C. D is 9.1 km from A and C is 10.8 km from D. Who traveled more and by how much?
The largest divisor
The largest number which divides 60 and 75 leaving remainders 8 and 10 respectively is:

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