# Multiplication + ratio - math problems

#### Number of problems found: 39

- Ratio

Unfold number 1963 in the ratio 9:2:2. - Ratios

Divide: a) 250 CZK in the ratio 2:3 b) 1000 CZK in the ratio 4:7:9 - Ratio - proportion

Reduce the number 16 in proportion 3:2 5:4 11:8 - Euros

Michal, Peter, John and Lenka got together 2,400 euros. They share an amount in ratio 2:6:4:3. How many got each of them? - Two xeroxes

The performances of the two copiers are in the ratio 3: 4. A machine with higher power will make 7,200 copies in one hour. How many copies will both machines make together in 5 hours? - Gain

Find the gain whenever the output power is 21x the input power. - Discount

Product has been discounted twice by 19%. What is the total discount given? - Cyclist

A cyclist passes 88 km in 4 hours. How many kilometers did he pass in 8 hours? - Chocolate

Leslie bought 8 same chocolates for 16 Eur. How many euros will he pay for 25 chocolates? - Chicks

How many chicks were hatched from 4500 eggs, when an average of 100 eggs hatched 87 chicks? - Prime divisors

Find 2/3 of the ratio of the sum and the product of all prime divisors of the number 120. - Cats

Two cats caught two mice in two days. How many mouses will catch 6 cats for 6 days? - Gear wheels

Two gear wheels, which fit together, have the number of teeth z_{1}=58 and z_{2}=149. Calculate the speed of the first wheel, if the second wheel rotates 1232 revolutions per minute. - Pumps

6 pump fills the tank for 3 and a half days. How long will fill the tank 7 equally powerful pumps? - Server

Calculate how many average minutes a year is a webserver is unavailable, the availability is 99.99%. - School trip

School trip cost 247.2 Eur for one class (24 students). How much would cost a trip for two classes? (both classes together have 53 students) - Chickens

2 chickens give 2 eggs in 2 days. How many eggs can give 8 chickens for 8 days? - Bonus

The gross wage was 1323 USD including 25% bonus. How many USD were bonuses? - Daily average

Calculate the average temperature during the day, when 15 hours were 20 °C and 9 hours was 13 °C. - Hens

11 hens will eat spilled grain from 6AM to 16 PM. At 11 hour grandmother brought 4 hens from the neighbors. At what time was grain out?

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