A certain sum is divided between four people A, B, C and D in the ratio 3 : 4 : 7 : 8, respectively. If the amount received by D is ₹408 more than the amount received by B, what is the total amount received by C and D?
Akbar can complete a piece of work alone in 12 days, while Anthony can complete the same work alone in 20 days. If they work on alternate days with Anthony starting the work, then in how many days can they complete the whole work?
15 days
16 days
\( 14 \tfrac{4}{5} \text{ days} \)
\( 15 \tfrac{1}{5} \text{ days} \)
There are 45 students in a hostel. If the number of students increases by 5, the total expenses of the mess increase by ₹30 per day while the average daily expenditure per head diminishes by ₹2. Find the original total daily expenditure of the mess.
The following table shows the number of songs sung by 6 different singers and uploaded on a streaming website.
| Singer | Songs |
| S1 | 20 |
| S2 | 25 |
| S3 | 15 |
| S4 | 10 |
| S5 | 30 |
| S6 | 20 |
The average number of views per song for S1, S2 and S3 is 100. The average number of views per song for S4, S5 and S6 is 50. What is the total number of views for all the songs sung by all of the 6 different singers taken together?