Question
The radius of a circle is equal to the radius of base of
a cone. If the diameter of the circle is 35 cm and the height of cone is 18 cm, then find the volume (in cm3) of the cone.Solution
Radius of circle = radius of the cone = 35/2 = 17.5 cm Volume of cone = π × (radius2) × (height/3) = (22/7) × 17.5 × 17.5 × (18/3) = (121275/21) = 5775 cm3
I. x ² – 10x + 21 = 0
II. y ² – 8y + 15 = 0
Let A be a 3 × 3 matrix such that |A ∣ =4. Then ∣ adj(adj(A)) ∣ equals:
Below given are 2 wrong number series.
Series I: 19, 30, 6, 45, – 11, 67
Series II: 141, 148, 223, 398, 723, 1248
I. The absolute...
The highest common factor (HCF) of two numbers is 17. If their product is 867, how many pairs of numbers satisfy these conditions...
The ratio of the ages of A and B is 3:4. Five years later, the ratio of their ages will be 4:5. What are their present ages?
If 'P' represents the largest single-digit prime number, determine the fourth proportional to the numbers (P + 3), (P - 2), and (P + 5).
The income of Surya is Rs. 75,000. He spent 16(2/3)%Â of his income on food, 60% of the remaining income on rent and saved 44% of the income remaining a...
A man invests ₹20,000 in a scheme that offers a 10% simple interest per annum. After how many years will his total amount become ₹30,000?
2, 5, 16, 65, ?, 1957
Which of the following options best defines the term 'Bandwidth'?