KCSE MATHEMATICS QUESTIONS AND SOLUTIONS ~ Topically Analyzed
Form 1 Mathematics
In January, Mambo donated 1/6th of his salary to a children's home while Simba donated 1/5th of his salary to the same children's home. Their total donation for
January was Ksh. 14 820. In February, Mambo donated 1/8th of his salary to the children's home while Simba donated 1/12th of his salary to the children's home. Their total donation for February was Ksh 8 675. Calculate Mambo 's monthly salary.
0 Comments
Form 2 Mathematics
Three vertices of a parallelogram PQRS are P(-l, 2), Q(8, -5) and R (5,0).
(a) On the grid provided below draw the parallegram PQRS. (b) Determine the length of the diagonal QS. Form 1 Mathematics
A customer paid Ksh. 5 880 for a suit after she was allowed a discount of 2% on the selling price. If the discount had not been allowed, the shopkeeper would have
made a profit of 20% on the sale of the suit. Calculate the price at which the shopkeeper bought the suit. Form 2 MathematicsForm 1 Mathematics
Using a ruler and a pair of compases only:
(a) construct a parallelogram PQRS in which PQ = 6 cm, QR = 4 cm and angle SPQ= 75°; (b) determine the perpendicular distance between PQ and SR. Form 2 Mathematics
The external length, width and height of an open rectangular container are 41 cm, 21 cm and 15.5 cm respectively. The thickness of the material making the container is 5 mm. If the container has 8 litres of water, calculate the
internal height above the water level. Form 3 Mathematics
A square room is covered by a number of whole rectangular slabs of sides 60cm by 42 cm. Calculate the least possible area of the room in square rnetres.
Form 2 Mathematics
A motorist took 2 hours to travel from one town to another town and 1 hour 40 minutes to travel back. Calculate the percentage change in the speed of the motorist.
Form 1 Mathematics
The diagonal of a rectangular garden measures 11 1/4 m while its width measures 6 3/4 m.Calculate the perimeter of the garden.
Form 3 Mathematics
In the figure below, P, Q, R and S are points on the circle centre O. PRT and USTV are straight lines.
Line USTV is a tangent to the circle at S, ZRST = 50° and LRTV = 150°.
(a) Calculate the size of:
(i) angle ORS; (ii) angle USP; (iii) angle PQR. (b) Given that RT = 7 cm and ST 9 cm, calculate to 3 significant figures: (i) the length of line PR; (ii) the radius of the circle. Form 2 Mathematics
In a uniformly accelerated motion the distance, s metres, travelled in time t seconds varies partly as the time and partly as the square of the time. When the time is 2 seconds, the distance travelled is 80 metres and when the time is 3 seconds, the distance travelled is 135 metres.
(a) Express s in terms of t. (b) Find: (i) the distance travelled in 5 seconds; (ii) the time taken to travel a distance of 560 metres. Form 3 Mathematics
The first term of an Arithmetic Progression (A.P.) with six terms is p and its common difference is c. Another AP. with five terms has also its first term asp and a common difference of d. The last terms of the two Arithmetic Progressions are equal.
(a) Express d in terms of c. (b) Given that the 4th term of the second A.P. exceeds the 4th term of the first one by 1, find the values of e and d. (c) Calculate the value of p if the sum of the terms of the first A.P. is 10 more than the sum of the terms of the second A.P. Form 3 Mathematics
A hail can accommodate 600 chairs arranged in rows. Each row has the same number of chairs. The chairs are rearranged such that the number of rows are increased by 5 but the number of chairs per row is decreased by 6.
(a) Find the original number of rows of chairs in the hall. (b) After the re-arrangement 450 people were seated in the hail leaving the same number of empty chairs in each row. Calculate the number of empty chairs per row. Form 4 Mathematics
A carpenter takes 4 hours to make a stool and 6 hours to make a chair. It takes the carpenter and at least 144 hours to make x stools and y chairs. The labour cost of making a stool is Ksh 100 and that of a chair is Ksh 200. The total labour cost should not exceed Ksh 4 800. The carpenter must make at least 16 stools and more than 10 chairs.
(a) Write down inequalities to represent the above information. (b) Draw the inequalities in (a) above on the grid provided.
(c) The carpenter makes a profit of Ksh 40 on a stool and Ksh loo on a chair.
Use the graph to determine the maximum profi.t the carpenter can make. Form 4 Mathematics
The positions of three ports A, B and C are (34°N, 16°W), (34°N. 24°E) and (26°S, 16°W) respectively.
(a) Find the distance in nautical miles between: (i) Ports A and B to the nearest nautical miles; (ii) Ports A and C. (b) A ship left Port A on Monday at 1330 h and sailed to Port B at 40 knots. Calculate: (i) the local time at Port B when the ship left Port A; (ii) the day and the time the ship arrived at port B. Form 3 Mathematics
In the figure below OJKL is a parallelogram in which OJ = 3p and OL 2r.
(a) If A ¡s a point on LK such that LA = 1/2 AK and a point B divides the line JK externally in the ratio 3:1, express OB and AJ in terms of p and r.
(b) Line OB intersects AJ at X such that OX = mOB and AX= nAJ. (i) Express OX in terms of p, r and m. (ii) Express OX in terms of p, r and n. (iii) Determine the values of m and n and hence the ratio in which point X divides line AJ. Form 4 Mathematics
(a) Complete the table below, giving the values correct to 2 decimal places.
(b) On the grid provided and using the same axes draw the graphs of y = cos x° and y= sin x°— cos x° for 0° ≤ x ≤ 180°.Use the scale; 1 cm for 20°on the x-axis and 4cm fort unit on the y-axis.
(c) Using the graph in part (b): (i) solve the equation sin x° — cos x° 1.2; (ii) solve the equation cos x°= 1/2 sinx; (iii) determine the value of cos x° in part (c) (ii) above. Form 3 MathematicsForm 1 Mathematics |
Categories
All
Archives
December 2024
Latest Posts |
We Would Love to Have You Visit Soon! |
Hours24 HR Service
|
Telephone0728 450425
|
|
8-4-4 materialsLevels
Subjects
|
cbc materialsE.C.D.E
Lower Primary
Upper Primary
Lower Secondary
Upper Secondary
|
teacher support
Other Blogs
|