question archive TASK 1 Sold at 800 then reduced to 640, percentage decrease = (decrease)/original price *100% (800-640)/800*100% = 160/800*100%=20% Percentage increase from 88 to 92, increase= 92-88= 4 Percentage increase =4/88 *100% = 4
Subject:StatisticsPrice: Bought3
TASK 1
Sold at 800 then reduced to 640, percentage decrease = (decrease)/original price *100%
(800-640)/800*100% = 160/800*100%=20%
Percentage increase from 88 to 92, increase= 92-88= 4
Percentage increase =4/88 *100% = 4.55%
Percentage increase from 2850000 to
Increase = 3100000-2850000 = 250000
% increase =250000/2850000 *100% = 8.77%
After 17% increase 313560, what is last year’s number of laptops shipped?
After increase the % was 17% +100% = 117% which is 313560
If 117% =313560, what about 100%
=100% /117*313560 = 268000
65 =125% what about 100% ?
100%/125%*65 = 52
TASK 2
5:7 = 15:21
800:4 = 250 : 5/4
16:3/8 = 4096/3 : 32
40:5/2 = 320:20
18:21 = 24:28