Question
If the ratio of A to B is 6:11, and the expression (8B -
3A) equals to 210, find the value of (3A + 2B).Solution
Let 'A' = '6x' So, B = 6x X (11/6) = '11x' According to question; 8 X 11x - 3 X 6x = 210 Or, 88x - 18x = 210 Or, 70x = 210 So, x = 3 So, A = 6x = 3 X 6 = 18 And, B = 11x = 11 X 3 = 33 So, required value = 18 X 3 + 33 X 2 = 54 + 66 = 120
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9, 10, 65, 27, 217, 5079, 152, 231, 314, 405, 500
- Find the wrong number in the given number series.
7, 35, 42, 126, 128, 118 8, 7, 12, 35, 128, 635
In each of the following number series, one term is wrong. Find the WRONG term.
3, 8, 18, 40, 78, 158
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125, 129, 120, 136, 121, 147
Find the wrong number in the given number series.
119, 200, 300, 417, 565
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