Let the first number be a and the second number be b According to the question, a = 4 × 0.6b = 24b And, a = 2(b + 5) Or, 2.4b = 2b + 10 Or, 0.4b = 10 Or, b = 10/0.4 = 25 Therefore, 1st number = 2.4b = 60
384, 1152, 144, 432, 56, 162
120, 140, 178, 232, 300, 360
88, 112, 78, 120, 64, 136
2100, 2140, 2186, 2240, 2300, 2372
Find the wrong number in given number series.
6490, 6377, 6294, 6211, 6138
134, 138, 132, 142, 126, 146, 122
99 124 160 209 273 355 454
78, 88, 118, 208, 468, 1288
91 96 105 121 143 176
96, 480, 120, 360, 150, 750
