Rational numbers + inverse relationship - practice problems
Number of problems found: 10
- The product 5
The product of two numbers is 250. One factor is 1/10 of 250. What is the second factor? What is the reciprocal of 1/10 of 250?
Divide by the number 0.2 is the same as multiply by what number?
The same type of medicament produces a number of manufacturers in a variety of packages with different content of active substance. Pack 1: includes 60 pills of 600 mg of active substance per pack cost 9 Eur. Pack 2: includes 150 pills of 500 mg of active
Mr. Billy calculated that excavation for a water connection digs for 12 days. His friend would take 10 days. Billy worked 3 days alone. Then his friend came to help and started on the other end. On what day since the beginning of the excavation they met?
Gross weight of shipment is 6927 kg and its tare is 7%. Calculate the net weight of the shipment.
Video is 153% more expensive than tape recorder. How many percent is tape recorder less expensive than video?
In the city are 3/9 of women married for 3/6 men. What proportion of the townspeople is free (not married)? Express as a decimal number.
Calculate fixed annual personnel costs of operating monorail line 118 km long if every 5 km is a station, which serves three people - one dispatcher and two switchmen in 4-shift operation. Consider the average salary of the employee 885 €.
If it is true that (l + 15 w)/(w) = 6, then the value of the expression (13 l)/(12 w) is:
The water pipe has a cross-section 1087 cm². An hour has passed 960 m³ of water. How much water flows through the pipe with cross-section 300 cm² per 9 hours if water flows the same speed?
Rational numbers - practice problems. Inverse relationship - practice problems.