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Chapter 1 Objective Type Question Answer Q1. Choose the correct option 1. The HCF of

$96$ and

$404$ will be a)

$120$ b)

$4$ c)

$10$ d)

$3$ 2. The HCF of

$12$ and

$15$ will be a)

$3$ b)

$4$ c)

$10$ d)

$5$ 3. Product of numbers

$= 32$ and their LCM

$= 8$ , then their HCF Will be a)

$4$ b)

$8$ c)

$32$ d)

$256$ 4. The HCF of

$4$ and

$7$ will be a)

$1$ b)

$2$ c)

$3$ d)

$4$ 5. For some integer m, every sum integer is of the form a)

$2m+3$ b)

$2m + 1$ c)

$2m$ d)

$2m+ 5$ 6. The rato of LCM and HCF for the numbers

$5, 15, 20$ Will be a)

$9: 1$ b)

$4:3$ c)

$11:1$ d)

$12:1$ Answer 1(b), 2.(a), 3.(a), 4.(a), 5.(c), 6.(d) Q2. Fill in the blanks 1) Dividend = divisor×qutient+_____. 2) The value of HCF of the numbers

$8,9$ and

$25$ will be______ . Answer 1. Remainder, 2. 1 Q3. Write True/False 1) Two positive integers a and b, there exist whole numbers q and r satisfying

$a = bq+r, 0le r ltb.$ 2) A prime factorisation of a natural number is unique apart from the order of its factors Q...