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The costs of equities of type A and type B (in dollars) are
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30 Apr 2019, 01:23
30 Apr 2019, 01:23
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The costs of equities of type A and type B (in dollars) are two different positive integers. If 4 equities of type A and 5 equities of type B together costs 27 dollars, what is the total cost of 2 equities of type A and 3 equities of type B in dollars?
(A) 15
(B) 24
(C) 35
(D) 42
(E) 55
(A) 15
(B) 24
(C) 35
(D) 42
(E) 55
Re: The costs of equities of type A and type B (in dollars) are
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01 May 2019, 08:40
01 May 2019, 08:40
1
4a + 5b = 27
a and b are both int.
only possible soln is a =3, b = 3
therefore; 2a + 3b = 2*3 + 3*3 = 6 + 9 = 15
a and b are both int.
only possible soln is a =3, b = 3
therefore; 2a + 3b = 2*3 + 3*3 = 6 + 9 = 15
Re: The costs of equities of type A and type B (in dollars) are
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16 Jun 2020, 22:08
16 Jun 2020, 22:08
he said different numbers
