Question

Practice Set 14 0 1. Choose the right option. (1) The HCF of 120 and 150 is (1) 30 (2) 45 (3) 20 (4) 120 (ii) The HCF of this pair of numbers is not 1. (1) 13, 17 (2) 29, 20 (3) 40, 20 (4) 14, 15 2. Find the HCF and LCM. (i) 14, 28 (ii) 32, 16 (iii) 17, 102, 170 (iv) 23, 69 (v) 21, 49, 84 3. Find the LCM. (1) 36, 42 (ii) 15, 25, 30 (iii) 18, 42, 48 (iv) 4, 12, 20 (v) 24, 40, 80, 120 4. Find the smallest number which when divided by 8, 9, 10, 15, 20 gives a remainder of 5 every time. 3 221 437 5. Reduce the fractions to the lowest terms. 319 247' 551 6. The LCM and HCF of two numbers are 432 and 72 respectively. If one of the numbers is 216, what is the other? 7. The product of two two-digit numbers is 765 and their HCF is 3. What is their LCM? & A trader has three bundles of string 392 m, 308 m and 490 m long. What is the greatest length of string that the bundles can be cut up into without any left over string? 97 Which two consecutive even numbers have an LCM of 180? 348​

Answer 1

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Answer 2

Answer:

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1. 122
2. 658
3. 556
4. 35
5. 24
6. 64
7. 54
8. 65
9. 46
10. 32

Step-by-step explanation:

Hope my answer will be helpful for you thanks

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