Arithmetic - math word problems - page 50 of 229
Number of problems found: 4573
- The speed 3
The speed of a boat in still water is 10 km/h. If the boat goes 37.5 km upstream in 5 h, find the speed of the stream. - A chemist 2
A chemist has two alloys of bronze, one that is 12% tin and 88% copper and a second that is 10% tin and 90% copper. If these two alloys are melted and thoroughly mixed together, between what two values are the percent of tin in the mixture? - It takes 2
It takes 7 1/5 seconds for a jet to fly 1 km. How long does it take for this jet to fly 3/4 of a km? - Simple interest 5
At what simple interest rate should Renel invest his P45,000 so that it earns P5,500 in 1 year and 5 months? - A potato
A potato farmer incurred a total cost of $1600 and $2500 from producing 5 and 8 potato bags, respectively, in 2 separate weeks. Find the cost of x bags. - A car 10
A car covers a distance of 200 km in 2 h 40 min whereas a jeep covers the same distance in 2 h. What is the ratio of their speeds? - A road
A road on a map measures 8 cm long. The scale of the map is 25000. Calculate the actual length of the road - Suppose 12
Suppose in a physics test involving 30 students, and four scored 75%, eight scored 60%, twelve scored 50%, and six scored 30%. Calculate the mean of the group and the standard deviation. - Solution dilution I'm further diluting a solution which has previously been diluted. I started with a 1:4 dilution, then diluted that a further 1:5, what is my dilution factor after this?
- Offset the mean
The mean of 16 numbers is 8. If 2 is added to every number, what will be the new mean? - The following 4
The following are the scores of 10 students in a quiz in Teaching Mathematics in the Intermediate Grades subject: 14, 16, 13, 17, 16, 16, 13, 19, 17, and 13. Find the mode and interpret it - Ekene and Amina
The probability that Ekene will be alive in 5 years' time is 3/4, and the probability that his wife Amina will be alive in 5 years' time is 2/5. Find the probability that in 5 years' time: a) both of them will be alive b) only Ekene will be alive - Three colleagues
Three colleagues divided the proceeds from an investment in proportion to their contributions. Bob received half as much as Olivia and also 4,000 CZK more than John. Olivia received 10,000 CZK. What was the total return on the investment? - Pirates
Pirates captured 1 tonne of gold and hid it in 25 barrels. How many more barrels would the pirates need if they transported only 25 kg of gold in each barrel? - Sweets 27
Vince and Luke together paid 52 CZK for a bag of 26 sweets. They divided the sweets fairly according to how much each had paid. Vince paid 20 CZK. How many sweets did Luke get? - 3 squirrels
We went on a trip to the Beskydy Mountains. On the first day, we saw 3 squirrels and walked 14.3 km. On the second day, we walked more slowly to see more squirrels, so we only walked 8.25 km. On the third day, a squirrel hit Frank on the head with a pine - Cake 3
A cake weighs 2 3/5 kg. What is the total weight of 8 such cakes? - With fractions
Evaluate the following expression with fractions and brackets: 2 × (1/3 + 2/5) − 3/5 - At night
On the night from Thursday to Friday, the temperature dropped to −7 °C. On Friday at noon, the temperature rose by 13 °C, and in the evening, the temperature dropped by 11 °C. What did the thermometer show on Friday evening? - From the intersection
From the intersection, the school is 6/5 km away, the shop 9/10 km, the bank 5/8 km, and the park 21/8 km. Which place is closest to the intersection?
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