There is no Royal Road to Geometry Euclid
maths and life is same,because both contains lots of problems saranya rajan
Description for Correct answer: If B alone completes the Work in x days,A will do the same 2 days. \( \Large \therefore \left(A + B\right)'s 1 \ days's \ work \)\( \Large = \frac{1}{x} + \frac{1}{2x} = \frac{2 + 1}{2x} = \frac{3}{2x} \)\( \Large \therefore C's ! \ days \ work = \frac{3}{4x} \)\( \Large \therefore \frac{3}{4x} = \frac{1}{20} \)\( \Large => 4x = 3 \times 20 \)\( \Large => x = \frac{3 \times 20}{4} = 15 \)\( \Large \therefore \left(A + B + C\right)'s \ 1 \ days \ work \)\( \Large = \frac{1}{2x} + \frac{1}{x} + \frac{3}{4x} = \frac{1}{30} + \frac{1}{15} + \frac{1}{20} \)\( \Large =\frac{2 + 4 + 3}{60} = \frac{9}{60} = \frac{3}{20} \) \( \Large =\frac{20}{3} = 6\frac{2}{3}days \) Part of solved SSC CGL-3 questions and answers : Exams >> SSC Exams >> SSC CGL-3 Comments Similar Questions
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Given: A = 50% more efficient than B C = 1/2 of work done by A and B together C alone can do the work in = 40 days Calculation: (A’s one day’s work) : (B’s one day’s work) ⇒ 150 : 100 ⇒ 3 : 2 Let A’s one day’s work be 3x and B’s one day’s work be 2x. ∴ According to the question C’s one day’s work = (3x + 2x)/2 ⇒ 5x/2 = 1/40 ⇒ x = (1/40) × 2/5 ⇒ x = 1/100 A’s one day’s work be 3/100 and B’s one day’s work be 1/50. ∴ (A + B + C)’s one day’s work: ⇒ 3/100 + 1/50 + 1/40 ⇒ 15/200 ⇒ 3/40 = (A + B + C)'s one day work A, B, C can complete the whole work in 40/3 days. ∴ A, B, and C can complete the work in 40/3 days. India’s #1 Learning Platform Start Complete Exam Preparation
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