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Class 8 Mathematics Revision Exercise 3
What is the difference between the LCM and the GCD of 12, 18 and 36?
A. 30
B. 36
C. 6
D. 12
(2m 55s)
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1.
Pencils are packed in packets containing 20 pencils each. The packets are placed in cartons each containing two dozens packets. A bookshop owner bought 5 cartons of pencils and sold each pencil at sh 3. How much money was obtained from the sale of all the pencils? A. Sh 7 200 B. Sh 2 400 C. Sh 1 440 D. Sh 3 600
2.
What is the value of #1/2 of (10-4) + 3/4 of \ 8 -:2-2 times 6 -: 4#? A. 4 B. 3 C. 8 D. 6
3.
The table below shows the number of cars, matatus, minibuses and buses which were used to transport pupils to a music festival. A car carried 5 pupils, a matatu 14, a minibus 25 and a bus 60 pupils. How many more pupils were transported to the music festival on Friday than on Wednesday? A. 561 B. 461 C. 273 D. 659
4.
What is the value of #(0.0968 times 0.088)/(0.242 times 0.0016)# ? A. 22 B. 220 C. 2.2 D. 0.22
5.
What is the place value of digit 3 obtained after working out the division #0.3648-:12# ? A. Tenths B. Hundredths C. Thousandths D. Ten thousandths
6.
A shopkeeper bought 3 trays of eggs at 150 per tray. On the way to her shop, the shopkeeper discovered 20% of the eggs were broken. She sold the good eggs at sh 72 per dozen. How much loss did she make? A. Sh 450 B. Sh 432 C. Sh 18 D. Sh 28
7.
If a=b+3, b=c+2, c=2d and d=4, what is the value of 3a-4b+2c ? A. 39 B. 40 C. 16 D. 15
8.
Mugoya’s shamba is the shape of PQRST shown below. What is the perimeter of mugoya’s shamba in metres?
9.
In a meeting there were 30 more women than men and three times as many men as children. If there were 1360 people altogether, what was the number of children in the meeting? A. 570 B. 190 C. 600 D. 220
10.
An aeroplane took #4 1/2# hours to fly from cairo to Nairobi. If it landed in Nairobi at 0215h on Sunday, when had it taken off from cairo? A. Friday 2145h B. Saturday 2245h C. Friday 2245h D. Saturday 2145h
11.
The length of the longest side of a right-angled triangle is 13 cm. if the height of the triangle is 5cm, what is the area of the triangle in square centimetres? A. 12 B. 156 C. 60 D. 30
12.
The population of giraffes in a particular game reserve was 1500 in one year. In the following year the giraffe population increased by 20%. What was the number of giraffes in the game reserve after the increase? A. 300 B. 1 800 C. 1 200 D. 1 950
13.
The parallel sides of a trapezium measure 10 cm and 18 cm respectively. If the distance between the parallel sides is 8 cm, what is the area of the trapezium in cm2? A. 224 B. 112 C. 108 D. 84
14.
The total surface area of an open cylindrical container is #594 cm^2#. If the diameter of the container is 14 cm, what is the height in centimetres? (take # pi=22/7 #) A. 20 B. 13.5 C. 6.5 D. 10
15.
The distance between towns T and S is 290km. a lorry driver left town T at 10.35 a.m and travelled to town S at an average speed of 50 km/h. at what time did he reach town S? A. 4.23 a.m B. 4.23 p.m C. 3.23 p.m D. 3.23 a.m
16.
What is the value of #(3^2 (5^2 - 4^2) - 3^2)/(4^2 - 2^2)#? A. 6 B. 3 C. 9 D. 36
17.
What is the value of 13.86 x 6.94 rounded off to two decimal places. A. 96.18 B. 96.188 C. 96.2 D. 96.19
18.
The marked price of a pair of shoes is sh 1 200. A customer was given a 20% discount. How much did he pay for the pair of shoes? A. Sh 1 440 B. Sh 240 C. Sh 960 D. Sh 1 080
19.
What is the difference between the LCM and the GCD of 12, 18 and 36? A. 30 B. 36 C. 6 D. 12
20.
The length of the base of a triangle is (3x+5) cm and its height is 10 cm. if the area of the triangle is #115 cm^2#, what is the value of x? A. 7 B. 6 C. 8 D. 5
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