Let △ABC~△PQR and \(\dfrac{\text{ar}(\triangle ABC)}{\text{ar}(\triangle QPR)} = \dfrac{64}{169},\) If AB = 10 cm, BC = 7 cm and AC = 16 cm, then PR (in cm) is equal to?
The length of the shadow on the ground of a tall tree of height 45 m is 15\(\sqrt{3}\) m. What is the angle (in degrees) of elevation of the sun?
Study the given histogram that shows the marks obtained by students in an examination and answer the question that follows.
The number of students who obtained less than 200 marks is what percentage less than the number of students who obtained 400 or more marks (correct to one decimal place)?
The curved surface area of a right circular cylinder is 616 cm² and the area of its base is 38.5 cm². What is the volume (in cm³) of the cylinder? (Take π = \(\dfrac{22}{7}\))
(Sec Φ - tan Φ )2 (1 + Sin Φ)2 ÷ Cos2Φ = ?
Person A can do one-fifth of the work in 3 days, while B's efficiency is half of that of A. In how many days A and B working together can do half of the work?
Study the given pie chart and answer the question that follows:
The chart represents the percentage-wise distribution of total number of vanilla cakes and chocolate cakes sold every day in a week.
Total number of cakes sold in a week = 10500.
The ratio of vanilla cakes sold to chocolate cakes sold on Friday is 4:3. If the selling price of one vanilla cake is ₹9 and that of one chocolate cake is ₹10, then the total amount earned (in ₹) by selling all the vanilla cakes and chocolate cakes on Friday is: