Question
A seller purchased certain number of watches at prices
ranging from Rs. 850 to Rs. 1150 and sold them at price ranging from Rs. 1000 to Rs. 1300. Find the maximum profit that can be earned by selling 9 such watches.Solution
Maximum profit will be earned when the cost price is least and selling price is maximum. Therefore, least cost price of 9 watches = 9 × 850 = Rs. 7650 Maximum selling price of 9 watches = 9 × 1300 = Rs. 11700 Therefore, maximum profit that can be earned = 11700 – 7650 = Rs. 4050
The area of a rectangular field is 2880 m² and its length to breadth in the ratio of 5 : 1. What is the perimeter of the field.
What will be the value of sin 10° – 4/3 sin3 10°?
A right-angled triangle has sides 12 cm, 16 cm, and 20 cm. A circle is inscribed within this triangle. Find the radius of the inscribed circle.
Ratio of length to width of a rectangular field is 5:2. If the perimeter of the field is 350 metres, then find the area (in m2) of the field.
If the diameter of a solid hemisphere is 12 cm, then its volume is taken π =22/7
A rectangular paper sheet of dimensions 33 cm x 14 cm is folded along its length to form a cylinder. What will be the volume of this cylinder? Take ã… ...
The common ratio of a geometric sequence is 3 and the 4th term is 9. What is the first term of the sequence?
Circumference of one of the bases of a right circular cylinder is 132 cm. If height of the cylinder is 0.1 metres, then find the volume (in cm3
A and B together started a business with initial investment in the ratio of 3:5, respectively. The time-period of investment for A and B is in the ratio...
A race track is in the shape of a rectangle with length of 10 metres and area of 3600 m2. A car takes 20 seconds to make one lap around the p...
