Rules
(i) (2-digit even number) ÷ ( Even number)
(ii) (Even number) x (Prime number)
(iii) (Odd number) + (Odd number)
(iv) (3-digit number) - (2-digit perfect square number)
(v) (3-digit number) ÷ (2-digit non-perfect square number)
Solution
1st Row 84 14 13 ? 84 ÷ 14 = 6 [rule (i)]
? 6 x 13 = 78 [rule (ii)]
2nd Row 360 24 17 ? 360 ÷ 24 = 15 [rule (v)]
? 15 + 17 = 32 [rule (iii)]
? Resultant difference = 78 - 32 = 46
F
Except option (c) rest all are perfect squares.
Except, `Plate', all two in number.
All other terms are used to denote the size.
15/20 x 5/4 x 2/3 x 8/5 = 1
All Except `Raft' are down by animal.
Only '729' is a perfect cube.
This is the only prime number in the group.
All others are soild metals.
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