If a:b = 5:7 and c:d = 2a:3b, then ac : bd is
| Question | If a:b = 5:7 and c:d = 2a:3b, then ac : bd is | |
| Type | multiple_choice | |
| Option | 20:38 | incorrect |
| Option | 50:147 | correct |
| Option | 10:21 | incorrect |
| Option | 50:151 | incorrect |
| Question | If a:b = 5:7 and c:d = 2a:3b, then ac : bd is | |
| Type | multiple_choice | |
| Option | 20:38 | incorrect |
| Option | 50:147 | correct |
| Option | 10:21 | incorrect |
| Option | 50:151 | incorrect |