Question
If the area of a circle is 616 cm², then the
circumference of the circle is:Solution
Area of a circle = πr2 616 = 22/7 × r 2 r 2 = 28×7 r = 14 cm Therefore the circumference of the circle = 2πr = 2 × 22/7 × 14 = 88 cm
The radii of two cylinders are in the ratio 1 : 4 and their heights are in the ratio 4 : 3.
Their volumes will be in the ratio ______.
The ratio of two numbers is 3: 5. If eight is added to the first, and seven to the second, then the ratio becomes 2:3. What will be the ratio become if...
- The ratio of apples to oranges in a basket is 3:2. If 12 apples are removed and 18 oranges are added, then the number of apples and oranges becomes equal. ...
Two vessels contain mixtures of milk and water in the ratio 7:3 and 5:4, respectively. Equal quantities from both vessels are mixed to form a new mixtur...
If D and E are the mid points of AB and AC respectively of ∆ ABC, then the ratio of the areas of ADE and BCED is ?
Radius of base of a hollow cone is 8 cm and its height is 15 cm. A sphere of largest radius is put inside the cone. What is the ratio of radius of base ...
In a wallet, the proportion of one-rupee coins to two-rupee coins is 5:6. Within one section of the wallet, the ratio of one-rupee to two-rupee coins is...
- If 80% of (X - Y) is equal to 40% of 60% of (X + Y), then what is the value of Y:X?
- If 70% of (P - Q) is the same as 35% of 80% of (P + Q), then what is the ratio of Q to P?
₹ 9200 is divided between L, M and N in the ratio of 6: 8: 9. If 'L' and 'M' each gave ₹ 400 to N then the new ratio of shares of L, M, and N is:
