GWD 01-29

[法法]

If y is the smallest positive integer such that 3, 150 multiplied by y is the square of an integer, then y must be
A.2
B.5
C.6
D.7
E.14
ANS:E.14

THANKS!

[peche]

If y is the smallest positive integer such that 3, 150 multiplied by y is the square of an integer, then y must be
A.2
B.5
C.6
D.7
E.14
ANS:E.14

THANKS!

3150 = 2 * 3^2 * 7 * 5^2
so get rid off 2 and 7 can make it a square of an int~

[法法]

Thanks!
誤會一場~~~原來是3,150
而非3 , 150
呼~~八成太晚睡了~~~

[zachary]

If y is the smallest positive integer such that 3, 150 multiplied by y is the square of an integer, then y must be
A.2
B.5
C.6
D.7
E.14
ANS:E.14

THANKS!

3150 = 2 * 3^2 * 7 * 5^2
so get rid off 2 and 7 can make it a square of an int~

不好意思，可以請問一下『If y is the smallest positive integer such that 3, 150 multiplied by y is the square of an integer, then y must be 』題目的意思是什麼？...有點看不太懂......
謝謝～

[scujean]

不好意思，可以請問一下『If y is the smallest positive integer such that 3, 150 multiplied by y is the square of an integer, then y must be 』題目的意思是什麼？...有點看不太懂......

y是一個最小正整數下，當3150乘以Y後，會變成某數的平方，符合此條件下的Y是多少

[kazue68jp]

不好意思，可以請問一下『If y is the smallest positive integer such that 3, 150 multiplied by y is the square of an integer, then y must be 』題目的意思是什麼？...有點看不太懂......

y是一個最小正整數下，當3150乘以Y後，會變成某數的平方，符合此條件下的Y是多少

multiplied by 應該是除的意思,3150除以y(14)之後會變成225,是15的平方.