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)` part of the same work. In how many days can A alone do the work?
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A six-faced dice is so biased that it is twice as likely to show an even number as an odd number when thrown. It is thrown twice, the probability that
Correct Answer - D Let the probability for getting an odd number be p. Therfore the probability for getting an even number is 2p. `thereforep+2p=1orp=1/3` Sum of two numbers is even...
2 Answers 3 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
1. Study the following statements: (a) It gives mothers more time to talk to children. (b) Mothers had more freedom and more time.
Answer is : 1. - (c) 2. - (a) 3. - (b) 4. - (c) 5. - (d)
2 Answers 1 views
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
Correct Answer - `(Y)/(3)`,3Y
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
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
10. Lymph differs from blood in possessing (1) More proteins and less waste products (2) Less proteins and more waste products (3) More proteins and more waste products (4) Less proteins and less waste products
(2) Less proteins and more waste products
2 Answers 1 views
The area of a parallelogram is 392 `m^(2)` . If its altitude is twice the corresponding base , determine is `392 m^(2)`. If its altitude is twice the
Correct Answer - Base = 14 m , altitude = 28 m
2 Answers 1 views