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CBSE - Aptitude Mathematics
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Practice Question
Aptitude Mathematics
.
Aptitude Mathematics
If the system of equations x+4ay+az=0, x+3by+bz=0, x=2cy+cz =0
has a non-zero solution, then a,b,c are in
1. A.P.
2. G.P.
3. H.P.
4. None of these
Correct Answer: 3
.
Related Questions
Aptitude Mathematics
1
Ayaram can do a work in 16 days Gayaram in 24 days. They take help of Zeenatbi and the 3 together finish the work in 6 days. If the total remuneration for the work is Rs.400, how much shall Zeenatbi receive commensurate to her performance?
1.Rs.100
2.Rs.120
3.Rs.150
4.none of these
Correct Answer: 3
2
Standard deviation for the following data 52,60,60,64,72,96 is equal to
1.14,12
2.1.32
3.132
4.13.8
Correct Answer: 1
3
Two numbers when divided by a certain number have remainders 12482 and 9619 respectively; when the two, numbers are added together and then the sum is divided by same number the remainder is 845. What the divisor?
(1) 21256 (2) 22156 (3) 21258 (4) NONE OF 'THESE
Correct Answer: 1
4
Cube root of 658503 is
1. 83
2. 77
3. 87
4. 97
Correct Answer: 3
5
If X is an odd integer and Y is an even integer, which of the following statements is (are) always true?
I. X + Y is odd.
II. XY is odd
III. 2X + Y is even.
1. I only
2. III only
3. I and III only
4. II and III only
Correct Answer: 3
