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Find the number of integers from 27000 to 106780 inclusive. 2. Find the sum of these numbers. 3. Mark statements as correct/incorrect. 4. Find the square root of given numbers.

Mathematics

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Here are the solutions to the questions:

  1. Answer question 1.

    To find the number of integers from 27000 to 106780 (inclusive), we use the formula: Last number - First number + 1.

    Number of integers=106780−27000+1\text{Number of integers} = 106780 - 27000 + 1 Number of integers=79780+1\text{Number of integers} = 79780 + 1 Number of integers=79781\text{Number of integers} = 79781

    The number of integers is 79781\boxed{\text{79781}}.

  2. Answer question 2.

    To find the sum of these numbers, we use the formula for the sum of an arithmetic progression: Sn=n2(a+l)S_n = \frac{n}{2}(a + l), where nn is the number of terms, aa is the first term, and ll is the last term.
    Here, n=79781n = 79781, a=27000a = 27000, and l=106780l = 106780.

    Sn=797812(27000+106780)S_n = \frac{79781}{2}(27000 + 106780) Sn=797812(133780)S_n = \frac{79781}{2}(133780) Sn=79781×66890S_n = 79781 \times 66890 Sn=5336180090S_n = 5336180090

    The sum of the numbers is 5,336,180,090\boxed{\text{5,336,180,090}}.

  3. Answer question 3.

    Mark the statements as correct (✓) or incorrect (X):

    • (i) The smallest prime number is 1. ❌ (The smallest prime number is 2.)
    • (ii) The smallest even prime number is 2. ✓
    • (iii) A factor of a number cannot be greater than that number. ✓
    • (iv) The H.C.F. of two prime numbers is 1. ✓
    • (v) The H.C.F. of two even numbers will always be an even number. ✓
  4. Answer question 4.

    The question asks for the square root (ବର୍ଗମୂଳ) of the given numbers. However, some numbers are perfect cubes rather than perfect squares. Assuming the question intends for integer roots (square or cube) where they exist:

    • For 1331: This is 11311^3. The cube root is 13313=11\sqrt[3]{1331} = \boxed{11}.
    • For 6084: This is 78278^2. The square root is 6084=78\sqrt{6084} = \boxed{78}.
    • For 4913: This is 17317^3. The cube root is 49133=17\sqrt[3]{4913} = \boxed{17}.
    • For 12167: This is 23323^3. The cube root is 121673=23\sqrt[3]{12167} = \boxed{23}.
    • For 32768: This is 32332^3. The cube root is 327683=32\sqrt[3]{32768} = \boxed{32}.
    • For 8000: This is 20320^3. The cube root is 80003=20\sqrt[3]{8000} = \boxed{20}.
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