Let Betty's age be x.
Betty is x, Hilder is x - 8 and Matilda is x - 3
x + x - 8 + 8 + x - 3 = 37
3x - 11 = 37
3x - 48
x = 16
Matilda is 16 - 3 = 13 years
johnmulu answered the question on June 8, 2017 at 06:26
-
A farmer has twice as many goats as cows and half as many pigs as cows. If he has 45 pigs in his farm, how many animals does he keep altogether?
(Solved)
A farmer has twice as many goats as cows and half as many pigs as cows. If he has 45 pigs in his farm, how many animals does he keep altogether?
Date posted:
June 8, 2017
.
Answers (1)
-
Mary is 5 times as old as her daughter. 15 years from now, the daughter will be half as old as her mother. What is the present age of each.
(Solved)
Mary is 5 times as old as her daughter. 15 years from now, the daughter will be half as old as her mother. What is the present age of each.
Date posted:
June 8, 2017
.
Answers (1)
-
A man is now three times as old as the daughter. In 12 years times he will be twice as old as his daughter. Find their present ages.
(Solved)
A man is now three times as old as the daughter. In 12 years times he will be twice as old as his daughter. Find their present ages.
Date posted:
June 8, 2017
.
Answers (1)
-
Kamau, Weko and Suna are three casual workers in an organisation. Kamau earns twice as much as Weko and Suna earns sh 40 more than Kamau. If the total earnings are sh 1 090, Calculate the difference between Weko's and Suna's earnings.
(Solved)
Kamau, Weko and Suna are three casual workers in an organisation. Kamau earns twice as much as Weko and Suna earns sh 40 more than Kamau. If the total earnings are sh 1 090, Calculate the difference between Weko's and Suna's earnings.
Date posted:
June 8, 2017
.
Answers (1)
-
A fuel dealer makes a gain of sh 450 for every 1000 litres of petrol sold and sh 380 for every 1000
(Solved)
A fuel dealer makes a gain of sh 450 for every 1000 litres of petrol sold and sh 380 for every 1 000 litres diesel sold. In a certain month the dealer sold twice as much petrol as diesel. If the total fuel sold that month was 600 000 litres, find the dealers profit for the month.
Date posted:
June 8, 2017
.
Answers (1)
-
The greatest of the three consecutive odd numbers is (2n + 3). If their sum is 105, find the value of n.
(Solved)
The greatest of the three consecutive odd numbers is (2n + 3). If their sum is 105, find the value of n.
Date posted:
June 8, 2017
.
Answers (1)
-
Two thirds of a number added to one ninth of the number is 20 less than the number. Find the number.
(Solved)
Two thirds of a number added to one ninth of the number is 20 less than the number. Find the number.
Date posted:
June 8, 2017
.
Answers (1)
-
Two thirds of a number exceeds three fifths of the number by 40. Find the number.
(Solved)
Two thirds of a number exceeds three fifths of the number by 40. Find the number.
Date posted:
June 8, 2017
.
Answers (1)
-
Simplify $\frac{x\;-\;1}{x}$ - $\frac{2x\;+1\;}{3x}$ Hence solve $\frac{x\;-\;1}{x}$ - $\frac{2x\;+\;1}{3x}$ = $\frac{2}{3}$
(Solved)
Simplify $\frac{x\;-\;1}{x}$ - $\frac{2x\;+1\;}{3x}$ Hence solve $\frac{x\;-\;1}{x}$ - $\frac{2x\;+\;1}{3x}$ = $\frac{2}{3}$
Date posted:
June 7, 2017
.
Answers (1)
-
Find k if
(Solved)
Find k if
$\frac{4x\;-\;1}{2}$ = $\frac{14x\;+\;k}{7}$
Date posted:
June 7, 2017
.
Answers (1)
-
Solve the equation
(Solved)
Solve the equation
$\frac{3x}{2}$ - $\frac{x\;-\;1}{3}$ = $\frac{1}{2}(3x\;-\;2)$
Date posted:
June 7, 2017
.
Answers (1)
-
Solve the equation
(Solved)
Solve the equation
$\frac{1}{3}(x\;+\;4)$ - $\frac{1}{2}(2x$ - 4) = 2
Date posted:
June 7, 2017
.
Answers (1)
-
Solve the equation
(Solved)
Solve the equation
$\frac{x\;+\;1}{3} \;- \frac{x\;-\;2}{4} \;=\frac{x}{6}$
Date posted:
June 7, 2017
.
Answers (1)
-
Solve the equation
(Solved)
Solve the equation
$\frac{1}{5}(x\;+\;6)\;=\;\frac{2}{3}(2\;-\;5x)\;+ \frac{3}{4}$
Date posted:
June 7, 2017
.
Answers (1)
-
Determine x where:
(Solved)
Determine x where:
$\frac{3x}{5}\;- \frac{x\;-\;2}{3}$ = 2
Date posted:
June 7, 2017
.
Answers (1)
-
Solve for x in:
(Solved)
Solve for x in:
$x\;+\;2 = \frac{5x\;-\;1}{4}-\frac{1}{2}(x\;+\;1)$
Date posted:
June 7, 2017
.
Answers (1)
-
Three years ago, a father was three times as old as his son. In three years time, the sum of their ages will be 76 years. Determine their present ages.
(Solved)
Three years ago, a father was three times as old as his son. In three years time, the sum of their ages will be 76 years. Determine their present ages.
Date posted:
March 10, 2017
.
Answers (1)
-
A motorist took 2$\frac{3}{4}$ hours to travel from town A to town B. If he started the journey at 10.30 a.m, determine the time the journey ended in
(Solved)
A motorist took 2$\frac{3}{4}$ hours to travel from town A to town B. If he started the journey at 10.30 a.m, determine the time the journey ended in
i) 24 hour clock system.
ii) 12 hour clock system
Date posted:
March 10, 2017
.
Answers (1)
-
A mathematics speed test started at 8.40 a.m and ended at 9.20 a.m. How long was the speed test
(Solved)
A mathematics speed test started at 8.40 a.m and ended at 9.20 a.m. How long was the speed test
Date posted:
March 10, 2017
.
Answers (1)
-
A metal P is an alloy of two metals Q and R. Metal Q has a mass of 70 g and a density of 16 g/cm3. Metal R has a mass of 19 g and a density of 4 g/cm3. Find the density of the alloy
(Solved)
A metal P is an alloy of two metals Q and R. Metal Q has a mass of 70 g and a density of 16 g/cm3. Metal R has a mass of 19 g and a density of 4 g/cm3. Find the density of the alloy.
Date posted:
March 10, 2017
.
Answers (1)