| Question | The ratio of two numbers is 4 : 5 and their H.C.F is 4. Find their L.C.M. | |
| Type | multiple_choice | |
| Option | 96 | incorrect |
| Option | 80 | correct |
| Option | 73 | incorrect |
| Option | 48 | incorrect |
| Solution | Let the numbers be 4x and 5x. H.C.F = x. So, x=4. So, the numbers are 16 and 20 L.C.M of 16 and 20 = 80. | |
