Question
Manoj can complete a job in 10 days which Rakesh can do
in 15 days. Rakesh can finish a task in 20 days which Suresh can complete in 25 days. In how many days Suresh and Rakesh together can finish the work that Manoj can do in 90 days?Solution
Let the efficiency of Manoj, Rakesh, and Suresh be p, q, and r units/day respectively. So, 10p = 15q p = 15q / 10 p = 3q / 2 Again, 20q = 25r r = 20q / 25 r = 4q / 5 Now, ratio of efficiencies of Manoj, Rakesh, and Suresh = (3q/2) : q : (4q/5) Multiply each term by 10 to remove fractions = (15q) : (10q) : (8q) ⇒ 15 : 10 : 8 Let p = 15e, q = 10e, and r = 8e Let required time = T days So, (10e + 8e) × T = 15e × 90 ⇒ 18T = 1350 ⇒ T = 75 days
What is the total outlay approved by the Union Cabinet for the Viability Gap Funding (VGF) scheme for offshore wind energy projects?
How much did the government aim to extend through credit guarantees for MSMEs under the CGTMSE scheme in the next two years?
Consider the following statements:
I. The Union Cabinet has approved the extension for the Pradhan Mantri Garib Kalyan Anna Yojana (PMGKAY-Phas...
Indian Railways has issued the Letter of Award (LoA) for Manufacturing and Maintenance of 9000 HP Electric Freight Locomotives to ____.
How many jobs were created in the manufacturing sector in FY23 according to the Annual Survey of Industries (ASI)?
In which city was the first regional APEDA office in Bihar inaugurated?
In cricket, who is the men’s ICC Player of the Month for November?
On which date will Karnataka officially hand over kumki elephants to Andhra Pradesh?
What is the maximum transaction limit allowed through the smartwatch launched by Airtel Payments Bank in collaboration with Noise and Mastercard?
Which football executive has been handed a worldwide ban by FIFA?
Relevant for Exams:
