a 75 *(1-40%)=45
There are 45 passengers are there on the lower deck
b 75*40%*30%=9
There are9 chidren are there on the upper deck
懂英文和數(shù)學(xué)的來(lái)!百分?jǐn)?shù)問(wèn)題.
懂英文和數(shù)學(xué)的來(lái)!百分?jǐn)?shù)問(wèn)題.
There are 75 passengers in a double-decker,and 40% of them are on the upper deck.
(a)How many passengers are there on the lower deck?
(b)If 30% of the passengers on the upper deck are children,how many chidren are there on the upper deck?
There are 75 passengers in a double-decker,and 40% of them are on the upper deck.
(a)How many passengers are there on the lower deck?
(b)If 30% of the passengers on the upper deck are children,how many chidren are there on the upper deck?
英語(yǔ)人氣：403 ℃時(shí)間：2020-03-29 20:16:40
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