Given: Number of boys in College A = 3x Number of girls in College A = 2x Number of boys in College B = 7y Number of girls in College B = 3y Total students are equal: 3x+2x=7y+3y So, 5x=10y or x=2y. Postgraduate Students: Number of postgraduate boys in College A = 80% of 3x = 0.8×3x=2.4x Number of postgraduate girls in College B = 60% of 3y = 0.6×3y=1.8y Since x=2y: 2.4(2y)+1.8y=3300 4.8y+1.8y=3300 6.6y=3300 y=500 Therefore, x=2y=2×500=1000. Hence, Total male students in College A:3x=3×1000=3000 Total female students in College B:3y=3×500=1500
24, 33, 50, ?, 108, 149
81, 90, 108, 135, 171, ?
11 34 135 676 4055 ?
342 252 172 102 42 ?
6 2 8 ? 84 416
...Find the maximum number of trees which can be planted, 25 meters apart, on the two sides of a straight road 2125 meters long
299, 302, 308, 317, ?, 344
12, 20, 36, ?, 132, 260
7 14 42 168 840 ?
...7, 14, 42, 210, 1470, ?
