Question
Which of the following is the condition where two lines
ax + by + c = 0 and Ix + my + n = 0 will have infinite solutions?ÂSolution
For two lines represented by the equations ax + by +c=0 and lx+my+n=0 to have infinite solutions, they must be coincident, meaning one line is a scalar multiple of the other. This condition is fulfilled when the ratios of the coefficients of x, y, and the constant term are equal: a/l=b /m= c/ n So option 4 is right.
169, 224, 293, 385, 497, 629
Find the wrong number in the given number series.
20, 33, 50, 69, 93, 121
25Â Â Â 26Â Â Â Â 28Â Â Â Â 32Â Â Â Â 42Â Â Â Â 56
Find the wrong number in the given number series.
8, 12, 23, 40, 66, 103
8137, 5405, 3669, 2701, 2201, 1997
Find the wrong number in the given number series.
78, 66, 51, 39, 20, 12
2824Â Â Â Â 2314Â Â Â Â Â 1973Â Â Â Â 1759Â Â Â Â 1634Â Â Â Â 1574
In each of the following number series, one term is wrong. Find the wrong term.
3, 7, 13, 21, 31, 42, 57
Find the wrong term in the given series below.
2847, 2954, 2799, 3088, 2727, 3256
Find the wrong number in the given number series.
2, 5, 10, 17, 26, 38, 50
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