KCSE MATHEMATICS QUESTIONS AND SOLUTIONS ~ Topically Analyzed
Comprehensive Answers and Marking Schemes KNEC Certified
ALT B | FORMULA AND VARIATIONS | | FORM 3 LEVEL | SECTION 1 | PAPER 2 | KCSE 2010 | QUESTION 4
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QUESTION 13 | KCSE 2023 | FORMULA & VARIATIONS | PAPER 2 | FORM 3 LEVELA quantity v varies directly as the square of u and inversely as the cube root of w. When u = 5 and w = 8, the value of' v = 375. Find the value of v when u = 8 and w = 125. (3 marks)
QUESTION 3 | KCSE 2023 | Formula & Variations | PAPER 2 | FORM 3 LEVELQUESTION 6 | KCSE 2021 | Formula & Variations | PAPER 2 | FORM 3 LEVELFour quantities P, Q, R and S are such that P varies directly as the square root of Q and inversely as the square of the difference of R and S. Quantity Q is increased by 44% while quantities R and S are each decreased by 10%.
Find the corresponding percentage change in P correct to 1 decimal place. (4 marks) QUESTION 4 | KCSE 2021 | Formula & Variations | PAPER 2 | FORM 3 LEVELQUESTION 4 | KCSE 2022 | FORMULA & VARIATIONS | PAPER 2 | FORM 3 LEVELThe market value of a certain precious stone varies directly as the square of its mass. One such stone of mass 10 kg has a value of Ksh. 600000.
Calculate the value of a similar stone whose mass is 18.5 kg. 3 marks Two variables x and y are such that y varies directly as x^n where n is a constantKCSE 2020 MATHEMATICS ALT A PAPER 2 QUESTION 6The volume v cm3 of a solid depends partly on r2 and partly on r3 where r cm is one of the dimensions of the solid
Data collected form an experiment involving two variables X and Y was recorded as shown in the table below.The variables are known to satisfy a relation of the form y = ax3+ b where a and b are constants
Two variables P and L are such that P varies partly as L and partly as the square root of L. Determine the relationship between P and L when L = 16, P = 500 and when L = 25, P = 800.5 marks A quantity P varies partly as Q and partly as the square root of Q, given that P=30 when Q=9, and P=14 when Q=16. Find P when Q=36. (3mks) |
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