two friends albert and robert decide to buy a car. albert payas 3/7 of the cost and robert pays the rest which fraction of the cost does robert pays??
Answers
Answered by
4
The total cost is considered as one unit, 1. So, if Albert pays 3/7 of 1, then, Robert must pay 1-3/7, i.e, 4/7. So, Robert pays 4/7 of the total cost
gunisoni:
i don't understand
what do you don't understand?
whole question
It's easy, the amounts paid by both friends are fractions of the total cost. So their sum must be 1
Answered by
3
LET ROBERT PAYS x.
Then
x+3\7 = 1
x = 1- 3/7
=4/7
Then
x+3\7 = 1
x = 1- 3/7
=4/7
Similar questions