[計量] 兩題計量~麻煩了!!
1 A ruby and a diamond have insured values of $1,800 and $1,200, respectively,
and the annual premium rate for each gem is $1.50 per $100 of insured value.
If the rate and insured values of two gems remain constant over the years,
after how many years will the total of the insurance premiums on both gems
for those years first exceed the insured value of the diamond?
(A) 8
(B) 12
(C) 20
(D) 27
(E) 40
Ans: D
2. The function △(m) is defined as the product of m+4, m+5, m+6 for all
positive integer values of m. If n is a positive integer, then △(n)must
be divided by which of the following numbers?
(A) 4
(B) 5
(C) 6
(D) 7
(E) 11
Ans: C
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 140.124.30.182
→
05/05 10:43, , 1F
05/05 10:43, 1F
→
05/05 10:43, , 2F
05/05 10:43, 2F
→
05/05 10:46, , 3F
05/05 10:46, 3F
→
05/05 10:47, , 4F
05/05 10:47, 4F
→
05/05 11:23, , 5F
05/05 11:23, 5F
GRE 近期熱門文章
PTT職涯區 即時熱門文章
13
31
824
1489