ML Aggarwal CBSE Solutions Class 8 Math 3rd Chapter Squares and Square Roots Exercise 3.4
the next perfect sq number is (90)2
= 8100
∴ required number = 8100 – 8000
= 1000
∴ 100, the least number that must be added to get perfect sq.
(11) Total plants = 1400
We get remainder = 31
(37)2 < 1400
Next perfect sq. (38) = 1444
∴ The minimum number of plants he needs more = 1444 – 1400
= 44
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