50 Calculate the money he got i In Ksh for the UK 2500 2 marks ii As profit for

# 50 calculate the money he got i in ksh for the uk

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He changed the money to at the rate of UK £ 1 = Ksh 130. 50. Calculate the money he got. (i) In Ksh. for the UK £ 2500. (2 marks) (ii) As profit for the sale of the carvings and the curio. (6 marks) (c) For the Kshs 37680 he changed to UK £. (2 marks) 11

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20. A cylindrical tank is connected to three pipes x, y and z. Pipes x and y can fill the tank to a depth of 2.4m in 3 and 8 hours respectively. Pipes z can empty the tank from the depth of 2.4m in 7 hours. Initially, the tank is empty in each case. a. When x alone is turned on for one hour how many metres of depth will the water reach. (3 marks) b. What fraction of the tank is, i. Filled by pipe y in 1 hour? (1 mark) ii. Emptied by pipe z in 1 hour? (1 mark) c. How long will it take to fill the tank to a depth of 2 metres when all the three tanks are running. (5 marks) 12
21. A triangle whose vertices are A(1,0) , B (1,2) and C(2,3) is mapped onto one with vertices A 1 (3,-2), B 1 (3,2) and C 1 (5,4) under an enlargement E. Another triangle whose vertices are A 11 (-1,7.5) , B 11 (4.5,5) and C 11 (2,4.5) is the image of A 1 B 1 C 1 under reflection R. a. (i) Draw the 3 triangles on the graph paper provided. (3 marks) Hence (ii)Find the centre and the scale factor of enlargement. (3 marks) (iii) Find the equation of the mirror line in the reflection R. (4 marks) 13
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