KNEC KCPE 2018 MATHEMATICS PAST PAPER AND ANSWERS - QUESTION 11-20

TURN BACK [QUESTIONS 1-10] ...

Question 11.

​What is the value of n in the equation 5n+3(n—4)36? 
   A. 8 
   B. 6 
   C. 5 
   D. 3 

ANSWER

Question 12.

​In a ranch the ratio of goats to sheep is 4:3, sheep to cows 5:2 and cows to donkeys is 3:2. What is the ratio of goats to donkeys? 
   A. 1:2 
   B. 1:5 
   C. 2:1 
   D. 5:1

ANSWER

Question 13.

​A pupil left home for school at a speed of 5 km/h and returned at a speed of 4 km/h. The whole journey took 5 h 24 min. How far is the school from home, in kilometers? 
   A. 9 
   B. 12 
   C. 24 
   D. 27 

ANSWER

Question 14.

​Zainabu bought five sacks of carrots for Sh. 13500. Each sack weighed 90 kg. How much should she sell a kilogram of carrot in order to make a profit of 10%? 
   A. sh. 27 
   B. sh. 3O 
   C. sh. 33 
   D. sh. 4O 

ANSWER

Question 15.

​A businessman saved sh 900000 in a fixed deposit account which earned Compound Interest at the rate of 15% per annum. How much money did he have in the bank at the end of the 2 years? 
   A. sh 1035000 
   B. sh 1170000 
   C. sh 1190250 
   D. sh 207000 

ANSWER

Question 16.

​A pupil recorded the number of family members of his 10 friends as shown in the table below:

Friend	1st	2nd	3rd	4th	5th	6th	7th	8th	9th	10th
Number of family members	7	3	6	4	7	9	3	6	7	4

​What was the product of the median and mode of the number of family members? 
   A. 13 
   B. 42 
   C. 54 
   D. 56 

ANSWER

Question 17.

​A field was lobe fenced using 816 posts placed 4 metres apart, leaving a 4 metre space for the gate. If 3 strands of wire were to be used, what would be the total length of wire required? 
   A. 3260 
   B. 3264 
   C. 9780 
   D. 9792 

ANSWER

Question 18.

In the figure below line SR is parallel to line TU, while line ST is parallel to line UV. Line OS=OT and angle RST is 42°. 

What is the size of angle TOV?
   A. 48° 
   B. 84°
   C. 96°
   D. 138° 

ANSWER

Question 19.

​A saleslady earns a basic monthly salary of sh 15000. She also gets a commission of 2% on the value of goods sold above sh 250000. In a certain month she sold 10 television sets @sh 26000, 5 refrigerators @sh 30000, 10 microwaves @sh 16000, one cooker for sh 84000 and another for sh 52000. How much did she earn that month, altogether? 
   A. sh. 29120 
   B. sh. 24120 
   C. sh. 20000 
   D. sh. 9120 

ANSWER

Question 20.

​Omondi had two children, Tina and Ahmed. When Tina was born Ahmed was 4 years old, Omondi was m years old while his wife was 5 years younger than him. What was their total age after 10 years? 
   A. 2m+9 
   B. m+19 
   C. 2m+39 
   D. 2m+49 

ANSWER

TURN OVER [QUESTIONS 21-30] ...

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