a) boys = 900 – 600= 300
ratio 3000:600
1:2
b) 300/900 x 100 = 331/3%
Kavungya answered the question on November 18, 2019 at 12:02
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During an annual general meeting at Elimu Mixed Day, goats and chicken were slaughtered. The number of heads for both chicken and goats were 45....
(Solved)
During an annual general meeting at Elimu Mixed Day, goats and chicken were slaughtered. The number of heads for both chicken and goats were 45. The total number of legs were 100. Determine the exact number of goats and chicken slaughtered.
Date posted:
November 18, 2019
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Answers (1)
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The diagram below represents a prism whose Cross-section is a right angled triangle. Draw the net of the solid.
(Solved)
The diagram below represents a prism whose Cross-section is a right angled triangle. Draw the net of the solid.

Date posted:
November 18, 2019
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Answers (1)
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Evaluate the value of x in 81x+1 + 34x = 246
(Solved)
Evaluate the value of x in 81𝑥+1 + 34𝑥 = 246
Date posted:
November 18, 2019
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Answers (1)
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A 890kg culvert is made of a hollow cylindrical material with outer radius of 76cm and an inner radius of 62cm. It crosses a road...
(Solved)
A 890kg culvert is made of a hollow cylindrical material with outer radius of 76cm and an inner radius of 62cm. It crosses a road of width 3m. Determine the density of the material used in its construction in Kg/m3 correct to one decimal place.
Date posted:
November 18, 2019
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Answers (1)
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Using logarithm table evaluate
(Solved)
Using logarithm table evaluate 
Date posted:
November 18, 2019
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Answers (1)
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When a certain number is divided by 48, 72 or 100 the remainder is 3 in each case. Find the number.
(Solved)
When a certain number is divided by 48, 72 or 100 the remainder is 3 in each case. Find the number.
Date posted:
November 18, 2019
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Answers (1)
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There are 2 bags A and B. Bag A has 4 white balls and 6 red balls. Bag B has 2 white balls and 3...
(Solved)
There are 2 bags A and B. Bag A has 4 white balls and 6 red balls. Bag B has 2 white balls and 3 red balls. Each bag has an equal chance of being picked. If a bag is selected randomly and 2 balls picked with replacement in bag A and without replacement in bag B. Find the probability that:
(a) They are both white
(b) They are of different colours
(c) At least one ball is red.
(d) None of the balls is white.
Date posted:
November 18, 2019
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Answers (1)
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Kamau bought a brand new motorbike for sh75000. Its depreciation rate is estimated at 12% per annum of its value at the beginning of each...
(Solved)
Kamau bought a brand new motorbike for sh75000. Its depreciation rate is estimated at 12% per annum of its value at the beginning of each of the first two years and 10% per annum thereafter. What will be the value of the motorbike at the end of five years.
Date posted:
November 18, 2019
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Answers (1)
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Find the value of x given that log(12 - 2x) - 1=log x - log 15.
(Solved)
Find the value of x given that log(12 − 2x) − 1=log x − log 15.
Date posted:
November 18, 2019
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Answers (1)
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Given that vectors OA= -8i + 2j and OB=6i + 4j and that T divides AB in the ratio 5:3, find TB in terms of...
(Solved)
Given that vectors OA= −8i + 2j and OB=6i + 4j and that T divides AB in the ratio 5:3, find TB in terms of i and j.
Date posted:
November 18, 2019
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Answers (1)
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Cherop's farm is in the shape of a trapezium ABCD shown below. A borehole is to be drilled in the farm such that it is...
(Solved)
Cherop's farm is in the shape of a trapezium ABCD shown below. A borehole is to be drilled in the farm such that it is closer to AB than to side AD and closer to corner C than to corner D. Shade the region of all points where the borehole can be drilled.

Date posted:
November 18, 2019
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Answers (1)
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Without using a calculator or mathematical tables simplify
(Solved)
Without using a calculator or mathematical tables simplify

Date posted:
November 18, 2019
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Answers (1)
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Given that the column vectors
(a) Express a as column vector and hence calculate its magnitude.
(b) Given that the midpoints of PQ is (-3,1) and Q(7,5),...
(Solved)
Given that the column vectors

(a) Express a as column vector and hence calculate its magnitude.
(b) Given that the midpoints of PQ is (−3,1) and Q(7,5), obtain the co−ordinates of P.
(c) A translation T(2 1) maps triangle ABC onto triangle A′B′C′. Given the co–ordinates A(2,3), B(2,5) and C(4,4). Find the co-ordinates of A′B′C′.
Date posted:
November 18, 2019
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Answers (1)
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Given that log 5=0.6990 and log 7=0.8451, find log 24.5
(Solved)
Given that log 5=0.6990 and log 7=0.8451, find log 24.5
Date posted:
November 18, 2019
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Answers (1)
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Determine the inequalities that define the unshaded region in the diagram below.
(Solved)
Determine the inequalities that define the unshaded region in the diagram below.

Date posted:
November 18, 2019
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Answers (1)
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The mean of the numbers m, 8m + 1, 17 and 20 is 14. Calculate the value of m.
(Solved)
The mean of the numbers m, 8m + 1, 17 and 20 is 14. Calculate the value of m.
Date posted:
November 18, 2019
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Answers (1)
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Given that 35x -2y=243 and 32x-y=3, calculate the values of x and y.
(Solved)
Given that 35x −2y=243 and 32x−y=3, calculate the values of x and y.
Date posted:
November 18, 2019
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Answers (1)
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Three automatic electric bells A B and C ring at intervals of 20 minutes, 30 minutes and 50 minutes respectively. If the bells ring together...
(Solved)
Three automatic electric bells A B and C ring at intervals of 20 minutes, 30 minutes and 50 minutes respectively. If the bells ring together at 8.20 am, at what time will they ring simultaneously again for the first time .
Date posted:
November 18, 2019
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Answers (1)
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Use logarithm table to evaluate
(Solved)
Use logarithm table to evaluate

Date posted:
November 18, 2019
.
Answers (1)
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The table below shows the marks scored by forty form 4 students in a mathematics class
a) Using an assumed mean score of 55, calculate the...
(Solved)
The table below shows the marks scored by forty form 4 students in a mathematics class

a) Using an assumed mean score of 55, calculate the mean of the data
b) Calculate the lower quartile
c) On the grid provided, draw the cumulative frequency curve to represent the above distribution
d) From the graph estimate
i) The 5th decile
ii) Range of marks of the middle 80% of the students
Date posted:
November 15, 2019
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Answers (1)