Question

7. If LCM (77, 99) = 693, then HCF (77, 99) is (a) 11 (b) 7 (c) 9 (d) 22
8. How many prime factors are there in the prime factorization of 5005? (a) 2 (b) 4 (c) 6 (d) 7
9. Which of the following rational numbers will have a terminating decimal expansion? (a) 71 210 (b) 29 343 (c) 63 90 (d) 15 1700
10. The HCF of two consecutive natural numbers is (a) 2 (b) 1 (c) 4 (d) 6
11. Find the LCM of 24, 60 and 150 (a) 320 (b) 540 (c) 600 (d) 125
12. Which of the following is the decimal expansion of an irrational number? (a) 5.46 (b) 2.303003000300003………​

Answer 1

Answer:

Step-by-step explanation:

Q7. a)

Q8. b)

Q10. b)

Q9, 11, 12. idk