Question

Jeff place is a pineapple with a mass of 890 g on a balance scale he balances the scale by placing two oranges an apple and a lemon on the other side each orange weighs 280 g the lemon weighs 195 g less than each orange what is the mass of the apple

Answer 1

There are two oranges, so 280+280=560
If one lemon is 195 g (grams) less than 280, than you would do 280-195=85
Then you add up the two sums -> 280+85=645
Which is the total weight of both oranges and the lemon. To find the weight (aka the mass) of the Apple you would subtract 645 from 890.
So 890-645= 245
The answer is 245