Numbers - math word problems - page 260 of 307

Number of problems found: 6139

Three-digit number count
Use the product rule to find out how many three-digit numbers exist.
Toothpaste usage time
The father would use the toothpaste alone for 15 days, the mother for 12 days, and the daughter for ten days. It was used by all three for three days, then only the father and mother. How many days have they used it since the beginning of its use?
Fertilizer water proportion
0.6 l of fertilizer goes to 40 l of water. How much fertilizer should be put in per 10 liters of water?
Pump diesel liters
Three identical pumps fill 50,400 liters of diesel into the tank in 7 hours. How much more (less) diesel will they pump if we add two more pumps, and they will all work for 4 hours?
Walking woman
Reeta walks 5/7 km in 1 hour. How far does she go in 3 1/2 hours?
Rollerblade
Martin rollerbladed 1 km per minute. What distance would he cover at the same speed in 3 3/4 hours?
Five brown
Five brown eye contracts, seven green pairs, and four blue pairs. What's the probability Gianna will randomly select a brown or green pair?
20 balls
20 colored balls in a bag: Four red Seven green Nine yellow What is the probability of picking a yellow ball?
Three digit from four digits
How many three-digit numbers can you make using the digits 4,6,7 and 9?
PIN - codes
How many five-digit PIN - codes can we create using the even numbers?
Prime number probability
We randomly draw one out of 18 cards with numbers from 1 to 18. What is the probability that the ticket drawn is a prime number? Write the result as a decimal number rounded to two decimal places.
Ticket divisible probability
Petra wrote natural numbers from 1 to 20 on 20 tickets. Milady had one ticket pulled out. What is the probability that Milada will pull out a ticket with a number divisible by three?
Even number creation
How many are all even two-digit numbers that We can create from the digits 2, 4, and 7? The numerals can be repeated in the created number.
A car license plate
A car license plate consists of one letter (out of 26) and six numbers. How many of these numbers can be formed if the letter is always in second place and cannot be adjacent to zero?
Underweight babies
A sample of underweight babies was fed a special diet, and the following weight gains (lbs) were observed at the end of three months: 6.7, 2.7, 2.5, 3.6, 3.4, 4.1, 4.8, 5.9, and 8.3. Find the variance. (Round off to the nearest hundredths)
Chalet
The children were on a school trip to the mountain. One-third of the journey went by train and continued by bus. When you get off the bus, they remain a third of the distance they traveled by bus. What part of the journey do children go by bus (write as a
Gold tin alloy
To make a gold decorative item, we alloy 250g of 18-carat and 200g of 14-carat gold with tin. How much tin must be added to obtain 14.6-carat gold? Express the purity of the obtained gold in the sense of the applicable legislation.
Polder filling
The polder has two tributaries. A larger inflow will fill an empty polder in 12 hours. The polder is already a quarter full. If we open both tributaries, the polder will be filled in 6 hours. How long would it take for a smaller inflow to fill an empty po
Cyclist route
On the first day, cyclists walked 2/5 of the way, which is 4/35 km. How many kilometers do they have to travel the next day to complete the entire route?
Cycling distance
We cycled 8 km, a third of the distance we traveled. How many kilometers do we have to travel?

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