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11. The H.C.F. of two numbers is 5 and their L.C.M. is 150. If one of the numbers is 25, then the other is:

30 | 28 | 24 | 20 |

12. What is the greatest possible length which can be used to measure exactly the lengths 8 m, 4 m 20 cm and 12 m 20 cm?

10 cm | 30 cm | 25 cm | 20 cm |

13. The least number, which when divided by 12, 15, 20 and 54 leaves in each case a remainder of 8 is:

504 | 536 | 544 | 548 |

14. The greatest possible length which can be used to measure exactly the lengths 7 m, 3 m 85 cm, 12 m 95 cm is:

15 cm | 25 cm | 35 cm | 42 cm |

15. What is the greatest number which on dividing 1223 and 2351 leaves remainders 90 and 85 respectively?

1133 | 127 | 42 | 1100 |

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