By what least number 4320 be multiplied to obtain a number which is a perfect cube?
32
56
52
50
D. 50
Clearly, 4320 = 23 * 33 * 22 * 5.
To make it a perfect cube, it must be multiplied by 2 * 52 i=50.
3
6
9
2
5
5/4
3/4
2/3
0.03
.003
3
3.0
6
3
4
8
160
150
132
100
Find the least square number which is exactly divisible by 10,12,15 and 18.
999
900
899
987
32
23
15
16
1.2934..
1.2933..
1.3
1
By what least number 4320 be multiplied to obtain a number which is a perfect cube?
32
56
52
50
170
170/11
123
123/11