A.C.K DIOCESE OF MUMIAS JOINT EVALUATION JULY 2025

A.C.K DIOCESE OF MUMIAS JOINT EVALUATION
JULY 2025
Kenya Certificate of Secondary Education [K.C.S.E]
121/1
MATHEMATICS ALT A
PAPER 1
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DURATION: 2𝟐 HOURS
INSTRUCTIONS TO THE CANDIDATES
• This paper consists of two sections section I and section II.
• Answer all question in section I and only five in section II.
• Show all steps in your calculations. Giving your answer at each stage in the spaces provided below each
question.
• Marks may be given for correct working even if the answer is wrong.
• Non programmable silent electronic calculators and KNEC tables may be used except where stated
otherwise.
SECTION I (50MKS)
1. Evaluate without using mathematical table or calculators.
(3mks)
0.036×0.0049
0.07×0.048
2. Find 𝑥 if 32𝑥+3 + 1 = 28
(2mks)
3. Simplify the expression completely.
(3mks)
2
2
6𝑥 𝑦 −20𝑥𝑦−16
2𝑥𝑦−8
4. A triangular vegetable garden has an area of 28𝑐𝑚2 . T