P, Q and R can complete a work in 10 days. 20 days and 30 days, respectively, working alone. How soon can the work be completed if P is assisted by Q and R on alternate days?
P, Q and R can do a piece of work in 10, 20 and 30 days respectively. Total work = 60 (LCM of 10, 20 and 30) P's efficiency = 60/10 = 6 Q's efficiency = 60/20 = 3 R's efficiency = 60/30 = 2 Pattern of work = PQ, PR, PQ, PR... Work done by PQ and PR in 2 days = (6 + 3) + (6 + 2) = 17 2 days => 17 units 2 × 3 = 6 days => 17 × 3 = 51 units remaining 9 units done by PQ in = work/efficiency = 9/(6 + 3) = 1 day Total time taken = 6 + 1 = 7 days ∴ P, Q and R complete the work together when P is assisted by Q and R on every alternate day in 7 days.
If the fixed cost is Rs.43,500 and the company, the contribution is Rs.500 per unit, how many unit sales would a company need to do to earn a profit of ...
In GST the transaction value for computation of value of supply can be rejected if-
Which form is required for preparing the Balance Sheet of an insurance company engaged in general insurance business?
Which of the following websites does not facilitate e-commerce?
Which section of the Companies Act, 2013 deals with an audit of cost accounting records -
What is the limit amount for deduction in respect of Medical/Health Insurance Premium under Section 80D of the Income Tax Act, 1961?
What banking transaction involves the exchange of one currency for another at the prevailing exchange rate?
Opening inventory Rs. 1,700/-, Purchases Rs. 27,000/-, Closing inventory Rs. 1,500. Cost of goods sold will be
...
What is the role of a Ceding Company in insurance?
