Question
What is the difference between (in m2) the
area of a circular field of radius 35 metres and area of a rectangular piece of land having its dimensions as 70 metres × 45 metres?Solution
Area of the circular field = π × radius2 = (22/7) × 35 × 35 = 3850 m2 Area of the rectangular piece of land = length × breadth = 70 × 45 = 3150 m2 So, difference in area = 3850 – 3150 = 700 m2
Twin prime numbers are the prime numbers whose difference is always equal to 2. The number of twin primes between 35 and 100 is:
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13, 14, 12, 15, 11, 16, 19, 10, 20, 18, 17 - The smallest positive integer 'R' which when divided by 9, 18, and 27 leaves 6 as the remainder in each case. Find the value of ('7R' - 20).
15Â Â Â Â Â Â Â Â Â Â 15Â Â Â Â Â Â Â Â Â Â 60Â Â Â Â Â Â Â Â Â Â 540Â Â Â Â Â Â Â Â 8650
...How many times I write digit ‘1’ in first hundred natural numbers?Â
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