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Work done by a man in (1 )/(2 )days = (1 )/(8 )part Work done by a woman in (1 )/(2 )days = (1 )/(16 )part Work done by a boy in (1 )/(2 )days = (1 )/(32 )part Let one man and one woman together can do a piece of work in (1 )/(2 )days = No. of x boys required According to the question, (1 )/(8 )+ (1 )/(16 ) + x/(32 ) = 1 (4 +2+ x )/(32 ) = 1 6 + x = 32 x = 32 – 6 = 26 Hence, 26 boys will be required.
306, 272, 240, ?, 182, 156
18, 34, 70, 134, ?, 378
32 33 29 38 ? 47 11
...3.6 × 1.5 + 8.4 × 2.5 – 9.2 × 3.5 = ? – 9.2 × 4.4
14, 20, 29, 44, 65, ?
143 119 107 101 98 ?
23, 27, 39, 59, ?, 123
216, 81, 297, 378, ?, 1035, 1728