X persons can complete a work in Y days. Then, 3X persons can complete the same work in ……….. Days and `(x)/(3)` persons can complete the same work in …………….. Days.
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`5` different objects are to be distributed among `3` persons such that no two persons get the same number of objects. Number of ways this can be done
Correct Answer - B `(b)` Division of objects can be `(0,1,4)` or `(0,2,3)` So total number of distribution ways `=(5!)/(0!*1!*4!)xx3!+(5!)/(0!*2!*3!)xx3!` `=30+60=90` ways
2 Answers 1 views
Authority can not be delegated of - (A) Routine Work (B) Secret work (C) Ordinary work (D) Easy work
Correct option is: (B) Secret work
2 Answers 1 views
In a survery, it was found that `21` persons liked product `A`, `26` liked product `B` and `29` liked product `C`. If `14` persons liked products `A`
Correct Answer - `(i) 12 (ii) 6`
2 Answers 1 views
The ratio of efficienciess of A, B can C is `2:3:4`. Working together, they can coplete a work in 20 days. In how many days can C alone finish the wor
Correct Answer - 45 days
2 Answers 1 views
Vianay and Vikram can complete a work in 48 and 36 days, respectively . If they work on alternate days beginning with Vinay, in how many days will the
Correct Answer - `41(1)/(4)`
2 Answers 2 views
A is twice as efficient as B. Time taken by B to complete `(4)/(7)` part of the work is 6n days more than the time taken by A to complete `(3)/(7)` pa
Correct Answer - `8(2)/(5)` days
2 Answers 1 views
300 men can construct a200m long wall in 12 days working 8 hours a day. In how many days can 120 men construct 180 m long wall working 9 hours per day
\(\frac{M_1D_1H_1}{W_1}=\frac{M_2D_2H_2}{W_2}\) M1 = 300, D1 = 12, H1 = 8, W1 = 200 M2 = 120, D2 = ? H2 = 9, W2 = 180 \(\frac{300\times12\times8}{200}=\frac{120\times D\times7}{180}\) D = 24 days
2 Answers 1 views
Prakash, Rohit and Sameer cam complete a job in 1 days, 20 days, adn 10 days, respectively. They sarted the job but Prakash was unwell on the first da
Correct Answer - `15%`
2 Answers 3 views
Prakash, Ramesh and Suresh started a job. After 2 days, Prakash left. After another 2 days, Ramesh left. In another 2 days. Suresh completed the reami
Correct Answer - Suresh
2 Answers 1 views
RBC can live for ……………… days in blood. A) 12 days
Correct option is D) 120 days
2 Answers 1 views