A factory's profit (total output value total expenditure) last year was 2 million yuan. This year's total output value increased by 20% compared with last year, total expenditure decreased by 10% compared with last year, and this year's profit was 7.8 million yuan. How many million yuan were the total output value and total expenditure last year?

A factory's profit (total output value total expenditure) last year was 2 million yuan. This year's total output value increased by 20% compared with last year, total expenditure decreased by 10% compared with last year, and this year's profit was 7.8 million yuan. How many million yuan were the total output value and total expenditure last year?

Suppose the total output value of last year is x ten thousand yuan and the total expenditure is y ten thousand yuan, then there is total output value / ten thousand yuan total expenditure / ten thousand yuan profit / ten thousand yuan last year x y 200 this year (1 + 20%) x (1-10%) y 780

Suppose that the price of M commodity in 2013 is 110 yuan, and the exchange rate of US dollar to RMB is 1:6.5
Suppose that the price of M commodity in 2013 is 110 yuan, and the exchange rate between us dollar and RMB is 1:6.5. If the social labor productivity of M commodity increases by 10%, the inflation rate is 10%, and the RMB appreciation against US dollar is 10% in 2014. If other conditions remain unchanged, according to the principle of equivalent exchange, the price of M commodity in 2013 is expressed in US dollar, which is about () US dollar

Labor productivity increased by 10% and inflation rate was 10%, which offset each other in price. In 2014, it was still 110 yuan in RMB. The exchange rate of RMB against the US dollar appreciated by 10%, and the corresponding exchange rate of US dollar to RMB was 6.5 / 1.1 = 5.9091, so 110 Yuan = 110 / 5.9091 = 18.62 US dollars. In 2014, goods were expressed in US dollars as 18.62 US dollars. In 2013, goods were expressed in US dollars as 110 / 6.5 = 16.92 US dollars

A factory's profit (total output value total expenditure) last year was 2 million yuan. This year's total output value increased by 20% compared with last year, total expenditure decreased by 10% compared with last year, and this year's profit was 7.8 million yuan. How many million yuan were the total output value and total expenditure last year?

Suppose the total output value of last year is x ten thousand yuan and the total expenditure is y ten thousand yuan, then there is total output value / ten thousand yuan total expenditure / ten thousand yuan profit / ten thousand yuan last year x y 200 this year (1 + 20%) x (1-10%) y 780

A factory's profit (total output value total expenditure) last year was 2 million yuan. This year's total output value increased by 20% compared with last year, total expenditure decreased by 10% compared with last year, and this year's profit was 7.8 million yuan. How many million yuan were the total output value and total expenditure last year?

Suppose the total output value of last year is x ten thousand yuan and the total expenditure is y ten thousand yuan, then there is total output value / ten thousand yuan total expenditure / ten thousand yuan profit / ten thousand yuan last year x y 200 this year (1 + 20%) x (1-10%) y 780