Ratio + fractions - practice problems - page 3 of 25
Number of problems found: 491
- Dimensions 83135
The large aquarium is shaped like a cuboid and has dimensions in the ratio 5: 7: 4. The sum of the lengths of all edges is 96 dm. How many liters of water will be in the aquarium if it is filled to four-fifths? - Participating 83071
One hundred seventy-five school pupils signed up for the school trip. The ratio of boys to girls was 9: 16. In the end, 19 registered students did not come on the trip, so the ratio of the number of participating boys and girls was 9: 17. How many boys an - Performance 82868
162 school pupils took part in the film performance, and the ratio of the number of boys to the number of girls was 7:11. Three boys and four girls left during the screening. Then what was the ratio of the number of boys to the number of girls? Adjust the - Shifts 82622
Four trucks will move the pile in 25 shifts. How many cars are needed to reduce the time by 2:5?
- Divided 82614
He had 810 sheep in the herd, and he divided them among the three bachas in such a way that bacha Ondrej Dostál got three parts, bacha Kubo got four parts, and bacha Maťo got two parts of sheep. How many sheep did each batch get if all parts were equal? - Treasures 82613
He divided his 15 gold treasures between his two sons in such a way that the elder got three parts and the younger got two parts of the entire wealth. How much treasure did each son get if all the parts were equal? - Dimensions 82501
The table has the shape of a rectangle with dimensions of 80 × 100 cm. Ten identical sheets of paper measuring 20 x 30 cm lie next to each other on it. Papers do not overlap or extend beyond the surface of the table. What part of the table surface is cove - Remained 82495
There were 2 liters of tea in the teapot. Dad poured himself a quarter of a liter of tea and Mom half a liter of tea. What part remained in the teapot? - Segment 82462
I will reduce a segment of length 16 cm in the ratio 7:8, what will its length be in cm?
- Dimensions 82414
The flag of Brazil has a yellow diamond on a green field with a blue circle inside. If we had a flag with dimensions of 70 cm x 50 cm, the rhombus would have a side 35 cm long and a height of 30 cm. Indicate with fractions in basic form what part of the f - Kilometers 82408
The longest Brazilian river, the Amazon, is ten times longer than the two Czech rivers, Vltava and Berounka. The ratio of the lengths of the Vltava and Berounka is 9:5. At the same time, the length ratio of the Vltava and Morava rivers is 5:4. How many ki - Calculate 82286
If I reduce a segment of length 72 cm in a ratio of 5:8, it will have a length of x cm. Calculate x. - Segment 82178
If I reduce a segment of length 72 cm in a ratio of 5:8, how many cm will it be? - Together 81974
Two gears mesh together. The larger wheel has 56 teeth, and the smaller wheel has 20 teeth. How many times does the smaller wheel turn if the larger wheel turns 15 times?
- Probability 81964
Calculate the probability of the event that you sit in seats 1 to 30 in the cinema at: a) seat marked with a prime number b) seat marked with an even number c) a seat marked with a number divisible by 3 or 4 - Descending 81797
The sum of the first two terms of the descending geometric sequence is five quarters, and the sum of the infinite geometric series formed from it is nine quarters. Write the first three terms of the geometric sequence. - Adjust 81781
Adjust ratio 1.6:0.8 - Three ratios
Calculate x in terms of: x:7=6:4 1/2:x=5:3/4 4:3=8:x - Horsepower 81496
The electric motor has an efficiency of 80% (power and input ratio). What is the power input of this motor if its power is 5 horsepower (HP)? Enter the result in kilowatts (kW) and round to one decimal place (1 HP = 3/4 kW).
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