Look For a pattern when corresponding terms of both sets of multiples are subtracted . A=4+8+12+16+⋯+100B=3+6+9+12+⋯+75A−B=1+2+3+4+⋯+25 * Approach 1 . Find the average of A−B . A−B has 25 addends ; the 13 th add end is the middle number 13, which...
4. Write the first five multiples of the following:(i)4(ii)3(ii)7(iv)9(v)5(vi)8(vii) 12(viii) 15 相关知识点: 试题来源: 解析 4.(i)4,8,12,16,20(ii) 3,6,9,12,15(iii)7,14,21,28,35(iv)9,18,27,36,45(v) 5,10,15,20,25(vi)8,16,24,32,40(vii)12,24,36,48,...
百度试题 结果1 题目Find the sum of the first 3 multiples of 14. A. 7 B. 28 C. 56 D. 84 E. 140 相关知识点: 试题来源: 解析 C 14+28+42=84.反馈 收藏
题目 Of the first 100 positive whole numbers, the ratio of the number of 8 to the number of multiples of 4 is . A.2:1 B.12:25 C.13:25 D.1:2 相关知识点: 试题来源: 解析 B 100中间有是8的倍数的有12个数,是4的倍数的有25个。12:25。 反馈 收藏 ...
Find the first five multiples of each number. (1) The first five multiples of 6 are , , , , and . (2) The first five multiples of 8 are , , , , and .相关知识点: 试题来源: 解析 (1) 6;12;18;24;30 (2) 8;16;24;32;40 (1) N/A (2) N/A反馈 收藏 ...
The average of the 15 multiples of 6 is the middle number, which is the 8th number. The eighth number is8×6=48. Then the sum of the 15 multiplies is15×48=720. Method 2 Let S equal the sum (1) S=6+12+18+24+⋯+84+90 Reverse (1) (2)S=90+84+78+72+⋯+12+6 A...
List the first 5 multiples of each number.(1)3(2)6(3)8. 相关知识点: 试题来源: 解析 (1) 3 3, 6, 9, 12, 15 (2) 6 6, 12, 18, 24, 30 (3) 8 8, 16, 24, 32, 40 . (1) N/A. (2) N/A. (3) N/A. .
百度试题 结果1 题目Write down the first 5 multiples of 9: . 相关知识点: 试题来源: 解析 9, 18, 27, 36, 45. 9, 18, 27, 36, 45.反馈 收藏
百度试题 结果1 题目Find the sum of the first 3 multiples of 14. A.7 B.28 C.56 D.84 E.140相关知识点: 试题来源: 解析 C 14+28+42=84.反馈 收藏
gmat数学题if M is the average of the first 10 positive multiples of 5 and if m is the median of the first 10 positive multiple of 5,what is the value of M-m?A -5 B 0 C 5 D 25 E 27.5 答案 如果M 是 前十个5 的倍数 的正整数的平均数,m 是这是十个数的中位数,问M 和m的差...