A, B and C can complete a piece of work separately in 10, 20 and 40 days, respectively. In how many days will the work be completed if A is assisted by both B and C every third day?
What is sinα - sinβ?
\(\, 2\cos\frac{\alpha + \beta}{2} \, \sin\frac{\alpha - \beta}{2} \)
\(\, 2\sin\frac{\alpha + \beta}{2} \, \sin\frac{\alpha - \beta}{2} \)
\(\, 2\cos\frac{\alpha - \beta}{2} \, \sin\frac{\alpha + \beta}{2} \)
\(\, 2\cos\frac{\alpha + \beta}{2} \, \cos\frac{\alpha - \beta}{2} \)
General English
Select the option that expresses the given sentence in passive voice.
Priya washes her clothes in the evening.
The clothes was washed by Priya in the evening.
The clothes is washed by Priya in the evening.
The clothes are washed by Priya in the evening.
The clothes were washed by Priya in the evening.
Select the option that contains a grammatical error in the underlined portion.
It would be impossible for them to continue living in this world if each of them knew exactly what fate had it store for them.
It would be impossible for them to continue living in this world if each of them knew exactly what fate had it store for them
It would be impossible for them to continue living in this world if each of them knew exactly what fate had it store for them
It would be impossible for them to continue living in this world if each of them knew exactly what fate had it store for them.
It would be impossible for them to continue living in this world if each of them knew exactly_what fate had it store for them.