21.
A manufacture of jam has 720 kg of strawberry syrup and 800 kg of mango syrup for making
two types of jam, grade A and B. Each types is made by mixing strawberry and mango syrups
as follows:
Grade A: 60% strawberry and 40% mango
Grade B: 30% strawberr

s
45.1
(a) (i) Using the information in the table, determine the values of a and b
( 2 marks)
(ii) Complete the table
( 1 mark)
(b) (i) Draw a graph to represent the relationship between s and t
( 3 marks)
(ii) Using the graph determine the velocity of th

MATHEMATICS PAPER 121/1 K.C.S.E 1998
QUESTIONS
SECTION 1 ( 52 Marks)
Answer all the questions in this section
1. Evaluate without using mathematical tables
1000
0.0128
200
2. Factorize a2 b2
Hence find the exact value of 25572 - 25472
3. The mass of 6 sim

11.
30% what should be the selling price of 1 kg of the mixture?
( 4 marks)
12.
A clothes dealer sold 3 shirts and 2 trousers for Kshs. 840 and 4 shirts and 5 trousers for Kshs
1680.
Form a matrix equation to represent the above information. Hence find th

x
-6
-6.75
y
21
18.56
-5.5
-5
-4.75
14.06
-4.5
4.25
10.06
8.25
-4.0
-3.75
-3.75
5
-3.5
-3.25
-3
2.25
1.06
0
a)
Complete the table
b)
Using the completed table and the mid- ordinate rule with six ordinates, estimate the
area of the region bounded by the y

18.
The table below shows the income tax rates
Total income per month in Kenya
Rate in shillings per pound
1 325
2
326 650
3
651-975
4
976 1300
5
1301 1625
7
Over 1625
7.50
Mr. Otiende earned a basic salary of Kshs 13,120 and a house allowance of Kshs 3,0

MATHEMATICS PAPER 121/2 K.C.S.E. 1998
QUESTIONS
SECTION 1 ( 52 MARKS)
Answer the entire question in this section
1. Use logarithms to evaluate
55.9 (02621 x 0.01177) 1/5
2. Simplify the expression x 1
- 2x + 1
x
3x
Hence solve the equation
x- 1
- 2x + 1 =

a) Determine A2
1 0 determine
,
the possible pairs of values of x and y
b) If A2 =
0 1
1. Given that log y = log (10n ) make n the subject
2. A quantity T is partly constant and partly varies as the square root of S.
a) Using constants a and b, write down

SECTION II ( 48 MARKS)
Answer any six questions from this section
11.
At the beginning of every year, a man deposited Kshs 10,000 in a financial institution which paid
compound interest at the rate of 20% p.a. He stopped further deposits after three years

SECTION II (48 Marks)
Answer any six questions from this section
17.
Two businessmen jointly bought a minibus which could ferry 25 paying passengers when full.
The fare between two towns A and B was Kshs 80 per passengers for one way. The minibus made
thr

1.
In a livestock research stations a new drug for a certain fowl disease is
being tried. A sample of 36 fowls were diagnosed to have the disease. Twenty (20) fowls
were treated with the drug and the rest were not.
(a)
Calculate the probability that a fow

SECTION II (48 Marks)
Answer any six questions from this section
17.
A circular path of width 14 metres surrounds a field of diameter 70 metres. The path is to be
carpeted and the field is to have a concrete slab with an exception of four rectangular hole

A hillside is in the form of a plane inclined at an angle of 30 0 to the horizontal. A straight section
of road 800 metres long lies along the line of greatest slope from a point A to a point B further
up the hillside.
20.
(a) If a vehicle moves from A an

12.
In the figure below, OA = 3i + 3J ABD OB = 8i j, C is a point on AB such that AC: CB = 3:2, and D is
a point such that OB / CD and 2 OB = CD.
Determine the vector DA in terms of i and j.
13.
( 4 marks)
Without using logarithm tables, find the value of

1. is of duration 5 minutes and the average speed between any two spots is 60 km/h. Calculate
distance between the two buses at 10 am.
2. Wainaina has two dairy farms. A and B. Farm A produces milk with 3 percent fat and farm B
produces milk with 4 percen

(a)
Determine the exact values for internal and external radii which will give maximum
volume of the material used.
( 1 mark)
(b)
Calculate the maximum possible volume of the material used
Take the value of to be 22/7
16.
( 2 marks)
Two lorries A and B fe

MATHEMATICS PAPER 1 K.C.S.E 1995 QUESTIONS
SECTION 1 (52 MARKS)
Answer all the questions in this section
1.
Without using logarithms tables evaluate
( 3 marks)
384.16 x 0.0625
96.04
2.
Simplify
( 3 marks)
2x 2
6x2 x 12
3.
x1
2x 3
Every week the number of

8.
(a) The interest paid to the bank
( 2 marks)
(b) The rate per annum of the simple interest
( 4 marks)
A rectangular tank of base 2.4 m by 2.8 m and a height of 3 m contains 3,600 liters of water
initially. Water flows into the tank at the rate of 0.5 l

MATHEMATICS PAPER 1 K.C.S.E 1996 QUESTIONS
SECTION 1 ( 52 Marks)
1.
Use logarithms to evaluate
( 3 marks)
3 36.15 x 0.02573
1,938
2.
Factorize completely 3x2 2xy y2
3.
The cost of 5 skirts and 3 blouses is Kshs 1750. Mueni bought three of the skirts and o

1. During a certain period, the exchange rate were follows
1 sterling pound = Kshs. 102.0
1 sterling pound = Kshs. U.S dollar
1 U.S dollar = Kshs. 60.6
A school management intended to import textbooks worth Kshs 500,00 from U.K. It changed the
money to st

MATHEMATICS PAPER 121/ 1 K.C.S.E 1999
QUESTIONS
Answer all questions in this section
1. (a) Evaluate
-8 2 + 12x 9-4 x 6
567 x 2
(b) Simplify the expression
5a 4b 2 [a- (2b + c)]
2. A point (-5, 4) is mapped onto ( -1, -1) by a translation. Find the image