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zubka84 [21]
3 years ago
8

Due to inflation there were two demand increases. After the second increase the price for a certain item became twice as big as

the original. By what percent was the first increase, if the second increase was 25%?
Mathematics
1 answer:
slamgirl [31]3 years ago
4 0
Consider, pls, this option:
1) let start price is 'x' and the 1-t increasing is 'y';
2) after the 1-t increasing new1_price is x(y+1);
3) after the 2-d increasing new2_price is 1.25x(y+1);
4) from another side, new2_price is '2x';
5) according to five items it is possible to make up an equation: 1.25x(y+1)=2x; 
1.25(y+1)=2, y=8/5 -1=3/5=0.6.
0.6 means 60%.
Answer: 60%.
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