For the following questions answer them individually
5 women and 9 girls earn a total of ₹18,720 in 9 days, while 9 women and 16 girls earn a total of ₹ 52,080 in 14 days. How much will 12 women and 7 girls together earn (in ₹) in 13 days?
An electronic store owner allows two successive discounts of 20% and 25% on each item. The store has a reward points scheme which enables a customer to get free shopping worth ₹0.10 on every 1 reward point credited to the customer’s account on previous purchases from the store. A customer decides to buy a laptop that is marked at ₹72,000. What will be its net selling price if he has 2850 reward points to his credit?
Evaluate the following:
$$\cos(36^\circ + A). \cos(36^\circ − A) + \cos(54^\circ + A). \cos(54^\circ − A)$$
Study the given pie-chart and answer the question that follows.
The pie-chart shows the expenditure incurred in the preparation of a book by a publisher, under various heads.
What is the difference between the angle of pie-chart showing the expenditure incurred on binding and printing?
If the total surface area of a cube is 24 sq.units, then what is the volume of the cube?
Find the simplified value of the given expression.
$$4\frac{4}{5} \div \frac{3}{5} of 5 + \frac{4}{5} \times \frac{3}{10} - \frac{1}{5}$$
Let ABC, PQR be two congruent triangles such that angle A = angle P = 90$$^\circ$$. If BC = 13cm, PR = 5cm, find AB.
4 women or 6 boys can finish a work in the same number of days. A man can finish it in 60 days. In how many days can 5 women finish the work, working together every day?