a. 120 =2 x 3 x 5, 90 =2 x 32 x 5 therefore G.C.D. =2 X 3 X 5
b. 72, 128 72 = 2^3 x 3^3, 128 = 2^7 therefore G.C.D. = 2^3
joseph rimiru answered the question on October 12, 2017 at 19:32
-
Express the following values in terms of their factors (a) 600 (b) 486
(Solved)
Express the following values in terms of their factors
a. 600
b. 486
Date posted:
October 12, 2017
.
Answers (1)
-
Daniel had 3543 bags of beans each weighing 50 kg. He sold 2443 of them (a) How many kilograms of beans was he left with (b) If he...
(Solved)
Daniel had 3543 bags of beans each weighing 50 kg. He sold 2443 of them.
a. How many kilograms of beans was he left with
b. If he added 578 more bags of beans, how many bags did he end up with?
Date posted:
October 12, 2017
.
Answers (1)
-
A certain fabric 20 m long cost ksh 3000. What would be the cost of similar material 5 m longer?
(Solved)
A certain fabric 20 m long cost sh 3000. What would be the cost of similar material 5m longer?
Date posted:
October 12, 2017
.
Answers (1)
-
A tractor takes 10 days to cultivate a plot of land 3 hectares in area. What area of land will be cultivated in 25 days...
(Solved)
A tractor takes 10 days to cultivate a plot of land 3 hectares in area. What area of land will be cultivated in 25 days working at the same rate?
Date posted:
October 12, 2017
.
Answers (1)
-
Twelve men working five hours a day take 10 days to complete a job. How long will it take six men working 12 hour a...
(Solved)
Twelve men working five hours a day take 10 days to complete a job. How long will it take six men working 12 hour a day to complete the same task.
Date posted:
October 12, 2017
.
Answers (1)
-
An express train takes 2 hours to travel between two stations at an average speed of 75 km/h. At what average speed would it need...
(Solved)
An express train takes 2 hours to travel between two stations at an average speed of 75 km/h. At what average speed would it need to travel in order to cover the same distance in 3 hours?
Date posted:
October 12, 2017
.
Answers (1)
-
Use the ratios method to find how far a car can travel on 24 litres if it can travel for 30 km on 3 litres.
(Solved)
Use the ratios method to find how far a car can travel on 24 litres if it can travel for 30 km on 3 litres.
Date posted:
October 12, 2017
.
Answers (1)
-
The profit of a company was divided between new plants, reverse and dividends are 4:3:11. If the profit is sh 900000, what was the amount...
(Solved)
The profit of a company was divided between new plants, reverse and dividends are 4:3:11. If the profit is sh 900000, what was the amount put in dividends?
Date posted:
October 12, 2017
.
Answers (1)
-
Find the angles of quadrilateral which are in the ratio 6:4:5:3
(Solved)
Find the angles of quadrilateral which are in the ratio 6:4:5:3
Date posted:
October 12, 2017
.
Answers (1)
-
A 144 hectare farm is to be shared among three sons in the ratio 3:2:4. What will be the size in hectares of the three...
(Solved)
A 144 hectare farm is to be shared among three sons in the ratio 3:2:4. What will be the size in hectares of the three shares?
Date posted:
October 12, 2017
.
Answers (1)
-
Decrease the value 60 in the ratio 2:3
(Solved)
Decrease the value 60 in the ratio 2:3
Date posted:
October 11, 2017
.
Answers (1)
-
Increase 40 in the ratio 6:5
(Solved)
Increase 40 in the ratio 6:5
Date posted:
October 11, 2017
.
Answers (1)
-
From a certain farm 400 bags of maize were harvested. How many bags of maize would be harvested from 18 ha if the production standards...
(Solved)
From a certain farm 400 bags of maize were harvested. How many bags of maize would be harvested from 18 ha if the production standards were maintained?
Date posted:
October 11, 2017
.
Answers (1)
-
Convert speed of 120 km/h to m/s
(Solved)
Convert speed of 120 km/h to m/s
Date posted:
October 11, 2017
.
Answers (1)
-
A lorry can travel 180 km on 20 litres of diesel. How far can it go on 15 litres of diesel?
(Solved)
A lorry can travel 180 km on 20 litres of diesel. How far can it go on 15 litres of diesel?
Date posted:
October 11, 2017
.
Answers (1)
-
A landlord was paid sh 48000 by his tenant in one year. What was his rate of payment per month?
(Solved)
A landlord was paid sh 48000 by his tenant in one year. What was his rate of payment per month?
Date posted:
October 11, 2017
.
Answers (1)
-
A secretary can type 6420 words in one hour. What is her rate of typing per minute?
(Solved)
A secretary can type 6420 words in one hour. What is her rate of typing per minute?
Date posted:
October 11, 2017
.
Answers (1)
-
A modern train can travel to town A 500 km from town B, in 4 hours. What is its average speed?
(Solved)
A modern train can travel to town A 500 km from town B, in 4 hours. What is its average speed?
Date posted:
October 11, 2017
.
Answers (1)
-
A factory produced 3200 rolls of chain link wire in 4 day working week. What was the rate of production of rolls of wire per...
(Solved)
A factory produced 3200 rolls of chain link wire in 4 day working week. What was the rate of production of rolls of wire per day?
Date posted:
October 11, 2017
.
Answers (1)
-
A certain company pays their laborers sh. 800 per-eight hour working day. What is the rate of payment per hour?
(Solved)
A certain company pays their laborers sh. 800 per-eight hour working day. What is the rate of payment per hour?
Date posted:
October 11, 2017
.
Answers (1)