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NDA Numerical Ability Questions with Answers

(#M40026934) NDA QUESTION General Ability Test-2012 Keep an EYE

Which of the following group is present in animal cells ?
(A) Mitochondria, Cell membrane, Cell wall, Cytoplasm
(B) Chloroplast, Cytoplasm, Vacuole, Nucleus
(C) Nucleus, Cell membrane, Mitochondria, Cytoplasm
(D) Vacuole, Cell membrane, Nucleus, Mitochondria

Asked In NDA MAN (11 years ago)

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(#M40026505) NDA QUESTION Mental Ability Keep an EYE

The harmonic mean H of two numbers is 4 and the arithmetic mean A and geometric mean G satisfy the
equation 2A + G^2 = 27. The two numbers are
(a) 6, 3 (b) 9, 5 (c) 12, 7 (d) 3, 1

Asked In NDA MAN (11 years ago)

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(#M40026486) NDA QUESTION Mental Ability Keep an EYE

If two lines of regression are perpendicular, then the correlation coefficient r is
(a) 2 (b)
1/2 (c) 0 (d) None of the above

Asked In NDA MAN (11 years ago)

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