Instructions

Instructions: What will come in place of question mark (?) in the following questions?

Question 52

(23.1)2 + (48.6)2 - (39.8)2 = ? + 1147.69

Solution

(23.1)2 = 533.61
(48.6 )2 = 2361.96
(39.8)2 = 1584.04
533.61 + 2361.96 - 1584.04 = 1311.53
1311.53 - 1147.69 = 163.84

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