exam Maths Puzzle Numerical Ability

need help .05% of 150 is what?

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exam Other Question

a no. consist of two digit whose sum is 9. if 9 is subtacted from the no.the digit interchange their places.find the no. Make a conjecture concerning the decimal values in the approximation of common logarithms of numbers greater than 1 that have the same digits if:

log 398.4 = 2.6003
log 39.84 =