8. Find the least number which must be added to 60509 to make it a perfect s
m.
10
10. Find the greatest number of seven-digits which is a perfect square. Also,
211. Find the least number of eight-digits which is a perfect square. Also ind i
12. Find the number of digits in the square roots of the following numbers (
(a) 64
(b) 256
(c) 4489
(d) 3906
(1) 16224784
(g) 1758276 (h) 3915380329 (i) 1523
13. The area of a square field is 63504 m². How much time will a man tak
boundary, if he cycles at a constant speed of 26.88 km/h?
14. The area of square field is 65536 m². Find the cost of fencing it at the
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Answer:
12(a)8, (b) 16, (c) 67, (d) 62.5
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