Math practice for 13 year olds - page 261 of 422

Number of problems found: 8427

Workers 9
If two workers fix two windows in an hour, how many windows can 18 workers fix in the same two windows?
Rectangle 6946
The triangle has a base of 7 cm and a height of 6 cm. The rectangle has one side of 10.5 cm and the same area as the triangle. What is the length of the other side of the rectangle?
Monica
Monica left Php.900 to Bianca. When Monica asked for it after six months, Bianca decided to give Php.945 instead because she could use the money. What was the interest rate on Monica's money used by Bianca?
Fix + percentages
Mrs. Vargas is a car sales agent who earns Php.5,850 monthly plus a 4% commission on all her sales. In a month, she sold a car worth Php.740,000. Thus, her total earnings are Php. 5,850.
School yearbook
Bianca sold Php.18,500 worth of advertisements for the school yearbook. If she is given a commission of 8%, how much did she earn for the advertisements?
Deposit is pesos
Sally deposits Php.22,000 in her savings account. If the bank pays 1.5% interest per year, how much will she receive at the end of the year?
Temperature conversion
The average human body temperature is 98.6 degrees Fahrenheit. What is the temperature in degrees Celcius?
Real estate 2
A real estate agent sold a lot for Php.550,000. If his agency pays a 10% commission, how much commission will they receive?
Loan 4
Mr. Santos borrowed Php.18,000 at 1.5% interest for one year. What was the total amount he paid for the end of the 1-year term?
Sales tax
A sales tax on a Php 10,800 appliance is Php.1,620. What is the rate of sales tax?
Mister
Mister Ignacio paid Php 13693.75 for a television set that originally cost Php 15,650. Find the rate of discount. Please show your solution, please, please, please.
Old laptop
The sale price of an old laptop is Php.11000. If a 33 1/3% discount rate is given, how much is the sale price of the laptop without the discount? Please show your solution. Php is the Philippine peso.
Evening shift
While working the evening shift, Officer K took 8 hours to complete a task at his workstation, and Officer M took 10 hours to complete the same task at his workstation. How long would it take Officer K and M to complete the same task, each working at his
Quarter of a circle
Calculate the circumference of a quarter circle if its area is S = 314 cm².
Circumference 6929
Two-thirds of the circumference of the circle is 12π cm long. Calculate the area of the circle.
Two municipalities
The horizontal distance between municipalities is 39 km. The average sinking is 7 permille. What is the difference in height between these municipalities?
Toys 3
Tiffany's toyshop received a shipment of 360 toys. On the first day, 12 were sold the second day, 19 were sold; and on the third day, 26 were sold. How many days will the toyshop run out of toys?
Seawater
Seawater density is 1025 kg/m³, and ice is 920 kg/m³. Eight liters of seawater froze and created a cube. Calculate the size of the cube edge.
Bicycle gear
The pedal bicycle wheel has 56 teeth and a rear 20-gear tooth. How many times does the bicycle wheel turn when you make 20 turns of the pedal wheel?
Height as diameter of base
The rotary cylinder has a height equal to the base diameter and a surface of 471 cm². Calculate the volume of a cylinder.

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