更多"What is the least positive integer "的相关试题:
[单项选择]What is the remainder when the positive integer x is divided by 2 ?()
(1)x is an odd integer.
(2)x is a multiple of 3.
A. 条件(1)充分,但条件(2)不充分.
B. 条件(2)充分,但条件(1)不充分.
C. 条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.
D. 条件(1)充分,条件(2)也充分.
E. 条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.
[单项选择]What is the tens digit of positive integer x ?()
(1)x divided by 100 has a remainder of 30.
(2)x divided by 110 has a remainder of 30.
A. 条件(1)充分,但条件(2)不充分.
B. 条件(2)充分,但条件(1)不充分.
C. 条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.
D. 条件(1)充分,条件(2)也充分.
E. 条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.
[单项选择]If n is a positive integer and k=5.1×10n, what is the value of k ?()
(1)6,000<k<500,000
(2)k2=2.601×109
A. 条件(1)充分,但条件(2)不充分.
B. 条件(2)充分,但条件(1)不充分.
C. 条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.
D. 条件(1)充分,条件(2)也充分.
E. 条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.
[单项选择]Can the positive integer p be expressed as the product of two integers, each of which is greater than 1 ?()
(1)31<p<37
(2)p is odd
A. 条件(1)充分,但条件(2)不充分.
B. 条件(2)充分,但条件(1)不充分.
C. 条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.
D. 条件(1)充分,条件(2)也充分.
E. 条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.
[单项选择]When 10 is divided by the positive integer n, the remainder is n-4. Which of the following could be the value of n ?()
A. 3
B. 4
C. 7
D. 8
E. 12
[单项选择]If n is a positive integer and n2 is divisible by 72, then the largest positive integer that must divide n is
A. 6
B. 12
C. 24
D. 36
E. (E) 48
[单项选择]If a is a positive integer, and if the units' digit of a2 is 9 and the units' digit of (a+1)2 is 4, what is the units' digit of (a+2)2 ?()
A. 1
B. 3
C. 5
D. 7
E. 9
[单项选择]Is the positive integer x an even number ?()
(1)If z is divided by 3, the remainder is 2.
(2)If x is divided by 5, the remainder is 2.
A. 条件(1)充分,但条件(2)不充分.
B. 条件(2)充分,但条件(1)不充分.
C. 条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.
D. 条件(1)充分,条件(2)也充分.
E. 条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.
[单项选择]If n is a positive integer, is the value of b-a at least twice the value of 3n-2n ?()
(1)a=2n+1 and b=3n+1
(2)n=3
A. 条件(1)充分,但条件(2)不充分.
B. 条件(2)充分,但条件(1)不充分.
C. 条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.
D. 条件(1)充分,条件(2)也充分.
E. 条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.
[单项选择]For any positive integer n, n>1, the "length" of n is the number of positive primes (not necessarily distinct) whose product is n. For example, the length of 50 is 3 since 50=(2)(5)(5)
Which of the following integers has length 3 ?()
A. 3
B. 15
C. 60
D. 64
E. 105
[单项选择]If n is a positive integer and k+2=3n, which of the following could NOT be a value of K ?()
A. 1
B. 4
C. 7
D. 25
E. 79
[单项选择]If n is a positive integer, then n(n+1)(n+2) is ?()
A. even only when n is even
B. even only when n is odd
C. odd whenever n is odd
D. divisible by 3 only when n is odd
E. divisible by 4 whenever n is even
[单项选择]If p and q are positive integers, what is the value of q ?()
(1)qp-1=1
(2)p=1
A. 条件(1)充分,但条件(2)不充分.
B. 条件(2)充分,但条件(1)不充分.
C. 条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.
D. 条件(1)充分,条件(2)也充分.
E. 条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.
[单项选择]"They at least is what people say "means people()
A. don't say this much
B. say this but may not think so
C. say other things too
D. only think this
[单项选择]What effect does excessive positive onisation have on some people
A. They think they are mad.
B. They feel very tired.
C. They become violently sick.
D. They are too tired to do anything.
[单项选择]What effect does excessive positive ionization have on some people
A. They think they are mad.
B. They feel very tired.
C. They become violently sick.
D. They are too tired to do anything.