Question

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6. The HCF and LCM of two numbers are 33 and
264 respectively. When the first number is
completely divided by 2 the quotient is 33. The
other number is:
(a) 66
(b) 130
(c) 132
(d) 196
7. What will be the least possible number of the
planks, if three pieces of timber 42 m, 49 m and
63 m long have to be divided into planks of the
same length?
(a) 5
(b) 6
(c) 7
(d) none of these
8. What is the greatest possible speed at which a
man can walk 52 km and 91 km in an exact
number of minutes?
(a) 17 m/min
(b) 7 m/min
(c) 13 m/min
(d) 26 m/min
9. If A = 2n + 13, B = n +7, where n is a natural
number then HCF of A and B is:
(a) 2
(b) 1
(c) 3
(d) 4​

Answer 1

Answer:

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