NCTB Class 6 Math Chapter One Exercise 1.3 Solution by Math Expert. Bangladesh Board Class 6 Math Solution Chapter 1 Natural Numbers and Fractions Exercise 1.3 Solution.

Board |
NCTB |

Class |
6 |

Subject |
Mathematics |

Chapter |
1 |

Chapter Name |
Natural Numbers and Fractions |

Exercise |
1.3 Solution |

__Exercise – 1.3 ____Solution__

__Exercise – 1.3__

__Solution__

**(1) Determine H.C.F using prime factors:**

**(a) 144.240,612**

**(b) 525,495,570 **

**(c) 2666,9699**

**(2) Determine H.C.F by division method:**

**(a) 105,165**

**(b) 385,286, 418**

**(3) Determine L.C.M using prime factors:**

**(a) 15, 25, 30**

**(b) 22, 88, 132, 198 **

**(c) 24, 36, 54, 72, 96**

**(4) Determine L.C.M by Euclid’s method:**

**(a) 96,120**

**(b) 35, 49, 91**

**(c) 33, 55, 60, 80, 90**

**(5) What is the greatest number which divides 100 and 184 with the remainder 4 in every time?**

**(6) What is the greatest number which divides 27,40 and 65 with remainders 3 4,5**

**(7) Which smallest number will have 5 as remainder in every case when divided by 8,12,18 an 24?**

**(8) Which smallest number will have 15,20,25,31 and 43 as remainder respectively when divided by 20,25,30,36 and 48?**

**(9) The length of a Iron sheet and a copper sheet is 672 cm and 960cm respectively. What will be the length of the highest piece of equal size cut from the two sheets? Determine the number of pieces of sheets?**

**(10) What is the least number of 4 digits which is divided by 12,15,20 and 35?**

**(11) What is the greatest number of 5digts which will be divided by 16,24,30 and 36, with 10 as remainder in each case?**

**(12) Four buses traverse a distance of 10km, 24km. and 32km respectively from a bus stand after a definite interval of time. What is the minimum distance traversed by the buses when they meet together?**

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