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A coffee dealer mixes two brands of coffee, x and y, to obtain 40kg of the mixture worth Ksh. 65 per kg. If brand x is valued at Ksh. 70 per kg and brand y at ks.55 per kg. Calculate the ratio, in its simplest form, in which the brands x and y are mixed
asked
Aug 13, 2021
in
Mathematics Form 1
by
anonymous
ratios
0
votes
1
answer
A businessman makes a profit of 20% when he sells a carpet for Ksh. 36000. In a trade fair he sold one such carpet for Ksh. 33600. Calculate the percentage profit made on the sale of the carpet during the trade fair.
asked
Aug 13, 2021
in
Mathematics Form 1
by
anonymous
ratios
percentages
proportions
0
votes
1
answer
A bookstore had 30816 exercise books which were packed in cartons. Each carton contained 24 exercise books . The mass of an empty carton was 2kg and a full carton 12kg.
asked
Aug 11, 2021
in
Mathematics Form 1
by
anonymous
rates
ratios
proportions
0
votes
1
answer
Three types of tea costing sh203,sh146 and sh197 per kg are blended in the ratio of 2:5:k. Find the value of k,if the blend when sold at sh221 per kg gives 30% profit
asked
Aug 2, 2021
in
Mathematics Form 1
by
anony mous
ratios
rates
percentages and proportions
0
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1
answer
Mr. Kanja,Miss Kanene and Mrs Nyaga have to mark a form three math contest for 160 students. They take 5mins, 4mins, and 12mins respectively to mark a script. If they all start to mark at 9.00 am non-stop, what is the shortest time they can take to complete the marking?
asked
Jul 30, 2021
in
Mathematics Form 1
by
anony mous
ratios
proportions
least common multiple
0
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1
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Mr.Maina who deals in electronics sells a radio to a customer at Ksh. 1440 after giving a discount of 10% but find that he makes a 20% profit. Find the profit Mr. Maina would make if he does not give a discount.
asked
Jul 21, 2021
in
Mathematics Form 1
by
anonymous
ratios
percentages
proportions
0
votes
1
answer
Kiprono buys tea costing sh 112 per kilogram and sh.132 per kilogram and mixes them, then sells the mixture at sh.150 per kilogram .If he is making a profit of 25% in each kilogram of the mixture ,determine the ratio in which he mixes the tea.
asked
Jul 21, 2021
in
Mathematics Form 1
by
anonymous
ratios
percentages
proportions
0
votes
1
answer
Given that the ration x:y=2:3 find the ratio (5x-2y):(x+y).
asked
Jul 21, 2021
in
Mathematics Form 1
by
anonymous
ratios
proportions
0
votes
1
answer
Three machines A, B and C are set to work together. A working alone takes 6 hours to complete the work; B takes 8 hours while C takes 12 hours. All the three machines started working at the same time. 40 minutes later machine A broke down. B and C continued for another 1 hour before B ran out of fuel and therefore stopped working for 20 minutes while C continued. If B resumed working after 20 minutes, calculate the:
asked
Jun 30, 2021
in
Mathematics Form 1
by
anonymous
ratios
proportions
percentages
0
votes
1
answer
An industrialist has 460 litres of a chemical which is 75% pure. She mixes it with a chemical of the same type but 90% pure so as to obtain a mixture which is 78% pure. Find the amount of the 90% pure chemical used.
asked
Jun 30, 2021
in
Mathematics Form 1
by
anonymous
ratios
proportions
percentages
0
votes
1
answer
Find the selling price of 6 kg of a mixture of maize flour and millet flour if 4 kg of maize flour costing sh. 60 per kg is mixed with 6 kg of millet flour costing sh. 45 per kg and a profit of 20% is realized.
asked
Jun 30, 2021
in
Mathematics Form 3
by
anonymous
commercial arithmetic
ratios
proportions
percentages
0
votes
1
answer
A flour milling company has two types of flour for making porridge, maize flour and millet flour. Maize flour costs Ksh 60 per kilogram and millet flour costs Ksh 90 per kilogram. The milling company makes a new brand of flour by mixing maize flour and millet flour. If the new brand costs ksh 85 per kilogram, determine the percentage of maize flour in the mixture.
asked
Jun 18, 2021
in
Mathematics Form 1
by
anonymous
ratios
percentages
0
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1
answer
Three business partners, Kosgei, Kimani and Atieno contributed Ksh 1,750,000 towards an investment. Kosgei contributed 20% of the money. Kimani and Atieno contributed the remainder in the ratio 3:5 respective
asked
Jun 17, 2021
in
Mathematics Form 1
by
anonymous
ratios
proportions
percentages
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