Mathematics Exams
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KIRINYAGA WEST SCHOOL BASED EXAMINATION, 2025
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KIRINYAGA WEST SCHOOL BASED EXAMINATION, 2025
Kenya Certificate of Secondary Education
121/1
MATHEMATICS
Paper 1
JULY / AUGUST 2025
2½ hours
SECTION I (50 MARKS)
ANSWER ALL THE QUESTIONS IN THIS SECTION.
1. Without using mathematical tables or a calculator, evaluate
(3mks)
0.015+0.45 ÷ 15
4.9 𝑥 0.2+ 0.37
2𝑥 2 −98
2. Simplify
(3mks)
3𝑥 2 −16𝑥−35
3. A line L1 passes through point (1,2) and has a gradient of 5. Another line L2, is perpendicular to L1 and
meets it at a point where x = 4. Find the equation for L2 in the form y = mx + c
(3mks)
1
1
4. Given that Sin ( x + 45) – Cos (1 x) = 0,
Kenya Certificate of Secondary Education
121/1
MATHEMATICS
Paper 1
JULY / AUGUST 2025
2½ hours
SECTION I (50 MARKS)
ANSWER ALL THE QUESTIONS IN THIS SECTION.
1. Without using mathematical tables or a calculator, evaluate
(3mks)
0.015+0.45 ÷ 15
4.9 𝑥 0.2+ 0.37
2𝑥 2 −98
2. Simplify
(3mks)
3𝑥 2 −16𝑥−35
3. A line L1 passes through point (1,2) and has a gradient of 5. Another line L2, is perpendicular to L1 and
meets it at a point where x = 4. Find the equation for L2 in the form y = mx + c
(3mks)
1
1
4. Given that Sin ( x + 45) – Cos (1 x) = 0,
Book Details
Category:
Mathematics Exams
Added on:
October 04, 2025
Formats:
Digital, Print
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