Harry, Brandon, Andy and David paid a total of $70 for a present. David paid ¹₄ of what the rest paid. Harry paid 40% of what the rest paid. Brandon and Andy paid an equal amount of money. How much did Andy pay?

Harry	Brandon	Andy	David	Total
4x7			1x7	5x7
2x5	5x5			7x5
	1	1
10 u	9 u	9 u	7 u	35 u

40%= ⁴⁰₁₀₀= ²₅
Harry's share : Total share = 2 : 5

The total amount paid for the present is repeated.  Make the total amount the same.  LCM of 5 and 7 is 35.

Amount that Brandon, Andy and David paid = 25 u

Amount that Brandon and Andy paid
= 25 u - 7 u
= 18 u

The amount that Brandon and Andy each paid is the same.

Amount that Brandon and Andy each paid
= 18 u ÷ 2
= 9 u

Cost of the present = 35 u

35 u = 70

1 u = 70 ÷ 35 = 2

Amount that Andy paid
= 9 u
= 9 x 2
= $18

Answer(s): $18