IBPS Government Jobs Exams Numerical Ability Time and Work

A can complete a work in 20 days while B is 25% more efficient than A. B worked for 6 days and left, remaining work is completed by C in 15 days. Find in how many days C can complete the whole work alone?
A) 30 days B) 21 days C) 18 days D) 24 days E) 27 days

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IBPS Other Question

In the following questions, two equations (I) and (II) are given. Solve both the equations and give answer.
(I) 2x² + 9x + 9 = 0
(II) 15y² + 16y + 4 = 0
A) x > y B) x < y C) x ≥ y D) x ≤ y E) x=y or no relation can be established between x & y. The average salary of the entire staff in an office is Rs 3200 per month. The average salary of officers is Rs 6800 and that of non- officers is Rs 2000. If the number of officers is 5, then find the number of non-officers in the office?
A) 8 B) 12 C) 15 D) 5 E) None of these