Question
A is 4 years older than B who is twice as old as C. The
total sum of the ages of A, B and C is 34. How old is B?Solution
Let the present age of C be x years. Now, B’s age will be = 2x And A’s age will be = (4 + 2x) According to the question, => A + B + C = 34 => (4 + 2x) + 2x + x = 34 => 5x = 30 => x = 6 Therefore the age of B = 2 × 6 = 12 years
A cone has a base radius of 6 cm and a height of 8 cm. Find its volume and slant height (use π = 3.14).
120Â Â 124Â Â 151Â Â 167Â Â Â 292Â Â Â ?
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