NDA
Government Jobs Exams
What is the value of the minor of the element 9 in the determinant
9 24 2
0 13 1
10 19 2
Read Solution (Total 0)
NDA Other Question
If A and B are two non-singular square matrices such that AB = A, then which one of the following is correct ?
(a) B is an identity matrix (b) B = A^–1
(c) B = A^2 (d) Determinant of B is zero
For the next six (06) questions that follow:
In a state with a population of 75 × 106, 45% of them know Hindi, 22% know English, 18% know Sanskrit,
12% know Hindi and English, 8% know English and Sanskrit, 10% know Hindi and Sanskrit and 5% know
all the three languages.
Q.61 What is the number of people who do not know any of the above three languages ?
(a) 3 × 106 (b) 4 × 106 (c) 3 × 107 (d) 4 × 107
Ans. [c]
Q.62 What is the number of people who know Hindi only ?
(a) 21 × 106 (b) 25 × 106 (c) 28 × 106 (d) 3 × 107
Ans. [a]
Q.63 What is the number of people who know Sanskrit only ?
(a) 5 × 106 (b) 45 × 105 (c) 4 × 106 (d) None of the above
Ans. [d]
Q.64 What is the number of people who know English only ?