Rational numbers - practice problems - page 7 of 20
a rational number is a number that can be expressed as the fraction p/qof two integers, a numerator p and a non-zero positive denominator q. The decimal expansion of a rational number either terminates after a finite number of digits (example: 1/2 = 0.5), or eventually begins to repeat the same finite sequence of digits over and over - example 1/3 = 0.33333....
Number of problems found: 389
- School trip
School trip cost 247.2 Eur for one class (24 students). How much would a trip cost for two classes? (both classes together have 53 students) - Apples 4675
How many kilograms of apples would you buy for 300 euros if the kilo costs 0.90 euros? - Overnight change
It was 13°C yesterday, but the temperature changed by -18.6° overnight. What is the temperature now? - Alice 2
Alice swims for 2.5 hours every Saturday and 3.5 hours every Sunday. How many hours does she swim in 4 weeks? - Cooler place
The temperature recorded in Simla is -4°C and in Kufri is -6°C on the same day. Which place is cooler on the day? - On the trip
On the trip were more than 55 children, but less than 65. The teacher could form groups of 7, but groups of 8, no. How many children were on a trip? - Paper collecting
At the paper collecting contest, Franta gathered 2/9 tons, Karel 1/4 tons, and Patrick 19/36 tons of paper. Who has gathered the most and the least? - Calculate: 3944
Calculate: a) 23 - [2.6 + (6 - 9) - 4.52] b] 12.25 + 2 [2.7 - (-0.5 + 0.3 * 0.6)] - Abhey
Abhey weighs 41.6 kg. His father weighs 1.45 times more than him. What is the weight of his father? - Adhy deposits
Adhy deposits 1 678.75 to his savings account every month for ten months. How much is his savings after ten months? - Thermometer 48543
In the morning, the thermometer showed -7 °C, then the temperature rose by 4 °C, then rose again by 9 °C, fell by 2 °C, rose by 3 °C, fell by 6 °C, and finally fell again by 5 °C. What is the final temperature? - Resulting 4339
Arrange fractions in ascending order: 7/9, 5/6, 2/3, 11/12, 3/4; Write the resulting order as a 5-digit number, digit = order. - A sum 2
A sum of money is divided between Laura and Joan in the ratio of 2:3. Laura gets 8 pesos. How much did Joan get? - The enrolment
The enrolment for this school year is 2,340. If 1/6 are grade 8 and 1/4 are grade 10, how many are grade 7 or 9? - Trevor 2
Trevor bought 74.8 ounces of cat food and 52.5 ounces of dog food. How much pet food did he buy in all? - Marble bag
A marble bag sold by Rachel's Marble Company contains five orange marbles for every six green marbles. How many green marbles does it contain if a bag has 35 orange marbles? - Republic 8162
The factory produced 420 devices per month. They will sell 0.6 of them abroad. How many devices will remain in the Czech Republic? - Peter 4
Peter has a salary of 45,55 pesos per hour on a regular day and 2,5 times of regular rate over time. He worked 8 hours per regular day and 4 hours of overtime. Find the total amount of payments received. - Chose
Chose Juan bought three pieces of watermelon. If the weights of the three watermelons are 2.2103 kilograms, 3.0214 kilograms, and 2.6682 kilograms, how many kilograms of watermelons did Chose Juan buy? - Share
Carmen owns five shares of a certain stock. Yesterday the total value of her shares went down by 20 dollars. What was the change in value for each share?
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