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Class 8 Mathematics revision questions and answers Set 5
What is the value of x in the following equation 2(x+1)+4(x+2)=5(x+3)?
A. 4
B. 5
C. 3
D. 6
(3m 24s)
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1.
Which one of the following is 1101001 in words? A. One million one hundred and one thousand and one. B. One million ten thousand one hundred and one. C. Eleven million one thousand and one. D. One million one thousand and one.
2.
What is the value of #frac{0.924}{0.042}#+#frac{0.0108}{0.0012}#-#frac{5.76}{0.24}# A. 70 B. 0.7 C. 7 D. 8.8
3.
What is the 257498 rounded off to the nearest thousand? A. 258000 B. 260000 C. 257500 D. 257000
4.
What is the value of x in the following equation 2(x+1)+4(x+2)=5(x+3)? A. 4 B. 5 C. 3 D. 6
5.
The marked price of a pair of shoes was sh 1200. Adhiambo bought the pair of shoes at a discount of 15%. How much did she pay for it? A. Sh 1120 B. Sh 1080 C. Sh 1020 D. Sh 1185
6.
Kamata deposited sh 30000 in a bank which paid simple interest at the rate of 12 percent per annum. After 15 months he withdrew all his money. How much did he withdraw? A. Sh 4500 B. Sh 3600 C. Sh 33600 D. Sh 34500
7.
In order to complete a job in 18 days a company employed 24 workers. How many more days would 16 workers take to complete the job? A. 27 B. 9 C. 15 D. 12
8.
The price list in Kamau’s shop is as follows: 1 packet of maize meal sh 52 1 kg of cooking fat sh 95 1 bar of soap sh 42 1 kg of rice sh 35 Kasyoki bought 3 packets of maize meal, 2#frac{1}{2}# kg of cooking fat, 6 bars of soap and 5#frac{1}{2}# kg of rice. He paid his bill with a one thousand shillings note. How much more money should Kasyoki add so that Kamau can give him a two hundred shillings
9.
A bus left Malaba on Wednesday at 2235 h and took 12 hours 40 minutes to reach Mombasa. When did it reach Mombasa? A. Thursday 2.05 p.m. B. Thursday 11.15 p.m. C. Thursday 11.15 a.m. D. Friday 11.15 a.m.
10.
The fractions #3/5, 1/2, 2/3 and 5/8# are to be arranged from the largest to the smallest. Which one of the following is the correct order? A. #2/3, 3/5, 5/8, 1/2 # B. #2/3, 5/8, 3/5, 1/2# C. #1/2, 3/5, 5/8, 2/3# D. #2/3, 5/8, 1/2, 3/5#
11.
A map is drawn to a scale of 1: 5000. On this map a school compound is represented by a trapezium whose parallel sides measure 6 cm and 4 cm. The perpendicular distance between the parallel sides is 3 cm. what is the actual area of the school compound in hectares? A. 3.75 B. 7.5 C. 4.5 D. 3.7
12.
Cooking fat is packed in 250 g sachets which are placed in giant delivery cartons. Each carton contains 150 sachets and a pick-up truck is loaded with 30 such cartons. How many tonnes is the pick-up carrying? A. 1.15 B. 11.25 C. 1.125 D. 1125
13.
A rectangular tank measuring 2.4 m long, 1.8 m wide and 1.5 m high is half full of water. Water is pumped into this tank at the rate of 18 litres per minute. How many hours does it take to fill the tank? A.3 B.6 C.4#1/2# D.1
14.
The diagram below represents a solid made by removing a small semi-circle of diameter 7 cm from a larger semi-circle of diameter 14 cm. The shaded part represents the cross-section of the solid which is 1.2m long. What is the volume of the solid in cubic centimeters? (Take p=#22/7# ). A.69300 B.6930 C.693 D69.3
15.
In the year 2001 Soita harvested 456 bags of potatoes from his farm. In 2002 he harvested 64 bags more than in 2001. He sold all potatoes at sh 450 per bag in 2001 and at sh 400 per bag in 2002. How much more money did he get in 2002 than in 2001? A.sh 51600 B.sh 179600 C.sh 3 800 D.sh 2 800
16.
After paying an agent his commission Bakari was left with sh 694 800 from the sale of his car. This commission was 3#1/2# % of the price of the car. How much money was the agent paid? A.sh 21600 B. sh 24318 C.sh 25200 D.sh 50 400
17.
The hire purchase of a sewing machine was sh 48000. Mirriam bought the sewing machine on hire purchase by paying 25% of the hire purchase price as a deposit and the balance in 15 equal monthly instalments. What was the amount of each instalments? A.sh 3200 B.sh 2400 C.sh 2250 D.sh 4000
18.
An open cylindrical container of radius 7cm has a total surface area of #814 cm^(2)#.What was the height of the container in centimeters? (Take p=#22/7# ). A.15 B.30 C.11.5 D.18.5
19.
Owango drove from town R to town S, a distance of 140 km, at an average speed of 70km/h. At S he rested for 1#1/2# hours and then continued to town T. Between town S and T he drove for 3#1/2# hours at an average speed of 60 km/h. What was Owango’s average speed in kilometers per hour for the whole journey? A.65 B.70 C.50 D.60
20.
Wawira bought x mangoes and her friend Awino bought y mangoes. Halima bought 5mangoes less than the number of mangoes both Wawira and Awino bought. Which one of the following expressions represents the total number of mangoes the three girls bought? A.2x+2y+2 B.2x+2y-5 C.2x+2y-3 D.2x+2y+7
21.
The figure below represents the school athletics field. The field consists of a rectangular football field ABCD with two semi-circular fields. Side AB=100 m and BC=60 m. What was the area of the athletics field to the nearest square metre? (Take p=3.14) A.7410 B.8800 C.8820 D.8830
22.
The figure below shows two semi-circles with diameters 14cm and 7 cm respectively. A fly moved along the path ABCDE and then along the path ECA. What distance did it cover? (Take p=#22/7# ). A.33cm B.54cm C.47cm D.87cm
23.
The marked price of a shirt was sh 400. After an increase the marked price became sh 480. What was the percentage increase in the marked price? A.20% B.16 #2/3#% C.2% D.83#1/3# %
24.
How many more cubes are needed to complete the stack shown in the figure below? A.95 B.157 C.133 D.145
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