Question

XERCISE 3.1
Without multiplying say which of the following numbers may be perfect
squares. Give reasons.
(a) 5400
(b) 78
(c) 3403
(d) 910
(e) 142
(f) 507
(g) 1106
(h) 1875
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Answer 1

Answer:

(a) 5400

Step-by-step explanation:

because the no. 5400 is divisible by many no.

Answer 2

Answer:

a. 5400

d. 910

g. 1106

h. 1875

Step-by-step explanation:

a. 5400 is a perfect square because it has even no.of zeros.

d.910 is a perfect square because a no. ending with 0,1,4,5,6 or 9 is a perfect square.

g.1106 is a perfect square because a no. ending with 0,1,4,5,6 or 9 is a perfect square .

h.1875 is a perfect square because a no. ending with 0,1,4,5,6 or 9 is a perfect square.