HAL со:
15. M
tic
B
S
16. 7
f
Find the ratios x:y: z if:
(a) x: y = 9:10 and y: z= 5:3
(b) x = 4y and 2y = 3z
If x : y = 9:11, find the ratio (5x – 3y): (2x + 3y).
Two numbers are in the ratio s:t. If the first is a, find the second
The ratio of the radii of two spheres is 4 : 5. What is the ratio of
(a) their surface areas.
(b) their volumes.
The length of each side of a square is increased by 15%. Calculate
percentage increase in its area.
There is a 25% loss when an article is sold at sh. 200. At what price she
it be sold in order to make a profit of 5%?
A manufacturer sells goods to a shopkeeper at a profit of 15%
shopkeeper sells them so as to make a profit of 25%. During a sale.
shopkeeper reduced his prices by 10%. Find, to the nearest shilling,
factory nrice of an article which is marked at sh. 450 during the sale​