For the following questions answer them individually
A, B and C can complete a piece of work individually in $$7\frac{1}{2}$$ days, 15 days and 30 days, respectively. A and B start
working but A quits the job after 3 days. Then C joined B and both did the work till the completion of the work. In how many days will the whole work be completed?
Two numbers are in the ratio 8 : 5. If 17 is subtracted from the first number and 25 is added to the second number, then the ratio becomes 1 : 3. What is the sum of the two numbers?
If the two numbers are, respectively, 20% and 30% less than a third number, then what percentage of the first number is the second number?
The amount obtained by investing a certain sum in $$4\frac{3}{4}$$ years at 12% p.a. at simple interest is ₹2,175 more than the simple interest on the same sum in 11 years at the same rate. The sum (in ₹) is:
The value of $$\frac{5}{14} \div 5\frac{3}{7} of \frac{7}{19} - \left(\frac{3}{4} - \frac{4}{7}\right)$$
23 oranges were bought for ₹193.20 and sold at the rate of ₹108 per dozen. Find the profit percentage correct to one decimal place.
A sum of ₹1,800 gives a simple interest of ₹360 in 3 years 4 months. The rate of interest per annum is:
A wall clock is listed at ₹1,200 and the discount offered is 10%. What additional discount must be given to bring the net selling price to ₹945?
The average salary of all the workers in an organisation is ₹9,000. The average salary of 8 technicians is ₹14,000 and the average salary of the rest is ₹5,000. Find the total number of workers in the organisation.