Study resources on Kenyaplex

Get ready-made curriculum aligned revision materials

Exam papers, notes, holiday assignments and topical questions – all aligned to the Kenyan curriculum.

Or go directly to:

Class notes Holiday assignments Topical questions Other resources

A car uses 1 litre of petrol for every 8 kilometres. The car was to travel 480 kilometres and had 15 litre of petrol at...

A car uses 1 litre of petrol for every 8 kilometres. The car was to travel 480 kilometres and had 15 litre of petrol at the beginning of the journey. Each litre of petrol cost sh. 112.00. How much did it cost for the extra petrol added?

Answers

sharon kalunda answered the question on April 30, 2019 at 06:02

Answer Attachments

Next: Timmons sold a TV set costing Ksh. 47,000 at a profit of 20%. He earned a commission of 22.5 % on the profit. Find the...

Previous: An enlargement with centre (-2,3) maps (1,0) onto (4,-3). What is the image of (-3,-6) with the same centre of enlargement

View more Mathematics Questions and Answers | Return to Questions Index

Exams With Marking Schemes

Related Questions

Timmons sold a TV set costing Ksh. 47,000 at a profit of 20%. He earned a commission of 22.5 % on the profit. Find the... (Solved)

Timmons sold a TV set costing Ksh. 47,000 at a profit of 20%. He earned a commission of 22.5 % on the profit. Find the commission he earned.

Date posted: April 30, 2019 . Answers (1)
If x:y = 9:11, find the ratio of (5x - 3y):(2x + 3y) (Solved)

If x:y = 9:11, find the ratio of (5x - 3y):(2x + 3y).

Date posted: April 30, 2019 . Answers (1)
A straight line through the points A (2,1) and B (4,m) is perpendicular to the line whose equation is 3y = 5-2x. Determine the value of... (Solved)

A straight line through the points A (2,1) and B (4,m) is perpendicular to the line whose equation is 3y = 5-2x.
Determine the value of m and it's equation.

Date posted: April 30, 2019 . Answers (1)
Simplify the expression below. (Solved)

Simplify the expression below.

Date posted: April 30, 2019 . Answers (1)
Solve for x in the equation 3^x+1 + 3^{+ 3} + 3⁰ = 109 (Solved)

Solve for x in the equation 3^x+1 + 3^?? + 3⁰ = 109

Date posted: April 30, 2019 . Answers (1)
Solve 4x -3 = 6x -1< 3x + 16 and list all the integral values of x. (Solved)

Solve 4x -3 ≤ 6x -1< 3x + 16 and list all the integral values of x.

Date posted: April 30, 2019 . Answers (1)
The exterior angle of a regular polygon is 240. Determine the sum of the interior angles. (Solved)

The exterior angle of a regular polygon is 240. Determine the sum of the interior angles.

Date posted: April 30, 2019 . Answers (1)
The price of foodstuff generally increased by 20% at the beginning of a drought season and reduced by 30% during harvest season. Express the new price... (Solved)

The price of foodstuff generally increased by 20% at the beginning of a drought season and reduced by 30% during
harvest season. Express the new price as a ratio of the original price in its lowest form

Date posted: April 30, 2019 . Answers (1)
Without using tables or calculator, evaluate (Solved)

Without using tables or calculator, evaluate

Date posted: April 30, 2019 . Answers (1)
What is the formula for finding the area of a rectangle? (Solved)

What is the formula for finding the area of a rectangle?

Date posted: April 29, 2019 . Answers (1)
The product of the first three terms of a geometric progression is 64. If the first term is a and the common ratio is r, (Solved)

The product of the first three terms of a geometric progression is 64. If the first term is a and the common ratio is r,
a) Express r in terms of a
b) Given that the sum of the three terms is 14;
i) Calculate the values of a and r and hence write down two possible sequences each up to the 4th term
ii) Find the product of the 50th terms of the two sequences

Date posted: April 29, 2019 . Answers (1)
The length of a floor of a rectangular hall is 9m more than its width. The area of the floor is 136m². (Solved)

The length of a floor of a rectangular hall is 9m more than its width. The area of the floor is 136m².
(i) Calculate the perimeter of the floor
(ii) A rectangular carpet is placed on the hall leaving an area of 64cm². If the length of the carpet is twice its width,determine the width of the carpet

Date posted: April 29, 2019 . Answers (1)
Three quantities R, S, T are such that R varies directly as S and inversely as the square of T. (Solved)

Three quantities R, S, T are such that R varies directly as S and inversely as the square of T.
(a) Given that R = 480 when S = 150 and T = 5, write an equation connecting R, S and T
(b) (i) Find the value of R when S = 360 and T = 1.5
(ii) Find the percentage change in R if S increases by 5% and T decreases by 20%

Date posted: April 29, 2019 . Answers (1)
The table below shows income tax rates for a certain year. (Solved)

The table below shows income tax rates for a certain year.

A tax relief of Kshs. 1162 per month was allowed. In a certain month of the year, an employee’s taxable income in the
fifth band was Kshs. 2108.
a) Calculate:
i) Employees total taxable income in that month
ii) The tax payable by the employee in that month
b) The employees income includes a house allowance of Kshs. 15,000 per month. The employees contributed 5% basic
salary to a cooperative society. Calculate the employees net pay for that month.

Date posted: April 29, 2019 . Answers (1)
Line AB is the diameter such that the coordinates of A and B are (-1, 1) and (5,1) respectively. Find the equation of the circle. (Solved)

Line AB is the diameter such that the coordinates of A and B are (-1, 1) and (5,1) respectively. Find the equation of the
circle.

Date posted: April 29, 2019 . Answers (1)
If the local time of town A (52⁰N, 0⁰) is 12.00noon. Find the local time of town B(1⁰S,37⁰E) (Solved)

If the local time of town A (52⁰N, 0⁰) is 12.00noon. Find the local time of town B(1⁰S,37⁰E)

Date posted: April 29, 2019 . Answers (1)
Point T is the mid-point of a straight line AB. Given that the position vectors of A and T are i-j+k and 2i + 1½... (Solved)

Point T is the mid-point of a straight line AB. Given that the position vectors of A and T are i-j+k and 2i + 1½ k
respectively, find the position vector of B in terms of i , j and k.

Date posted: April 29, 2019 . Answers (1)
(a) Draw a regular pentagon of side 4cm (b) On the diagram drawn, construct a circle which touches all the sides of the pentagon (Solved)

(a) Draw a regular pentagon of side 4cm
(b) On the diagram drawn, construct a circle which touches all the sides of the pentagon

Date posted: April 29, 2019 . Answers (1)
a)Expand (1-x)⁵ up to the term in x³. (Solved)

a)Expand (1-x)⁵ up to the term in x³.
(b) Use the expansion in (a) to approximate the value of (0.98)⁵ correct to 3 decimal places

Date posted: April 29, 2019 . Answers (1)
In the figure below, AT is a tangent to the circle at A. Angle ATB = 480, BC = 5cm and CT = 4cm. Calculate... (Solved)

In the figure below, AT is a tangent to the circle at A. Angle ATB = 480, BC = 5cm and CT = 4cm. Calculate the length
AT.

Date posted: April 29, 2019 . Answers (1)