Inverse relationship - practice for 12 year olds - page 2 of 10
Number of problems found: 195
- Petrol as fuel
A car can travel 480 miles on a full tank of petrol. The tank holds 60 liters. The fuel gauge shows there are 15 liters left in the tank. How many more miles can the car travel before it runs out of petrol? - Ember
Ember spent $144 on her birthday party for 18 guests. If the cost is at the same rate, how many guests will there be if she pays $176? - The printer
A total of 6 pieces of book covers were printed in 0.12 hours. Each piece of the book cover was published in equal time. Calculate the time, in hours, to print 30 book covers. - Six identical
Six identical compressors inflate 180 balloons in one hour. How many balloons inflate one compressor in 10 minutes?
- Thirty-six 40921
Thirty-six women earned € 2,640 in 5 days during the strawberry harvest. How much € 24 will women earn in 8 days under the same conditions? - Carpenter 36293
The carpenter did the work in 3 2/5 hours. What part of the work did he do in an hour? - Book reading
Susan thought, "If I read 15 pages a day, I will read the whole book in 8 days. "How many pages would she have to read a day if she wanted to finish the book on the 6th day from the start of reading? And how many pages does the book have? - Minutes 31571
The typist typed 16 pages of text in 2 hours and 8 minutes. How many pages of text will you write at the same speed in 20 minutes? - A truck 2
A truck leaves the home with building materials and makes a return trip every six days. To deliver all the materials, you need eight truck trips every month. How many trucks do you need?
- Veronika 30553
Veronika, who worked in the store, put products from boxes onto shelves. She emptied 35 boxes every quarter of an hour. She thus emptied all the boxes in a tenth of her six-hour work shift. Only then did she devote herself to other work. How many boxes di - Consumption 30411
The vest consumes 170 cm of fabric with a width of 140 cm. What is the consumption of a material that is 150 cm wide? - Eight-square 29951
How many g of grass seed do we have to buy in the eight-square garden with a side of 20 m if we need 100 g of seed per 8 m²? - Gears
The front gear on the bike has 32 teeth, and the rear wheel has 12 teeth. How many times does the bike's rear-wheel turn if you turn the right pedal 30 times? What distance will you go if the circumference of the bicycle wheel is 250 cm? - Olive seeds
5 kg of oil is pressed from 100 kg of seeds. How many kgs of seeds do we need to produce 85 kilograms of oil?
- Poplar shadow
The nine-meter poplar casts a shadow 16.2 m long. How long does a shadow cast by Peter at the same time if it is 1.4 m high? - Fabric 29531
To sew a dress, you need 2 meters of fabric 150cm wide. How many meters of cloth do we need for the same dress if the fabric is only 90 cm wide? - A family
A family of four consumes 220 liters of water a day. How many hectoliters of water are consumed by 68 tenants per day? - Minutes 29491
The car will drive 70km in 56 minutes. How many meters will he drive in half an hour? - Reading
If I read 15 pages a day, I will read the whole book in 18 days. How long will it take to read a book if I only read nine pages every day?
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