Question
Find the HCF and LCM of 24, 36 and 60.
Solution
Prime factors: 24 = 2³ × 3 36 = 2² × 3² 60 = 2² × 3 × 5 HCF = product of common primes with smallest powers = 2² × 3 = 4 × 3 = 12 LCM = product of all primes with highest powers = 2³ × 3² × 5 = 8 × 9 × 5 = 72 × 5 = 360 Answer: HCF = 12, LCM = 360.
How many persons are sitting between person R and person T?
Eight persons D, E, F, G, H, I, J and K sit in a linear row. All of them face south. I sits third to the right of J. D sits second to the left of J. Th...
How many persons are sitting around the circular table?
Who is third to the left of S?
Four of the following five are alike in a certain way and hence form a group. Who among the following one does not belong to the group?
Who is the husband of V?
Statements: P < Q; C = D; Q >Z ≥ C
Conclusions:
I. P < C
II. Z = D
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If O is related to L and M is related to N in a certain way. Then, who among the following is related to R?
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