Others Maths Puzzle

Q. Let u = (log x)2 - 6 (log2 x) + 12, where x is a real number. Then the equation xn = 256, has

A. no solution for x
B. exactly one solution for x
C. exactly two distinct solutions for x

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Others Other Question

Q. The letters P, Q, R, S, T, U and V, not necessarily in that order represents seven consecutive integers from 22 to 33.
- U is as much less than Q as R is greater than S.
- V is greater than U.
- Q is the middle term.
- P is 3 greater than S.
Can you find the sequence of letters from the lowest value to the highest value? Q. -1 is divisible by

A. 13
B. 31
C. 5
D. None of these