Question
√143.88 X 31.87 + √323.99 X 15.99 - 31.99 X √195 =
? What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)Solution
ATQ,
√143.88 X 31.87 + √323.99 X 15.99 - 31.99 X √195 = ?
√144 X 32 + √324 X 16 - 32 X √196 = ?
12 X 32 + 18 X 16 - 32 X 14 = ?
384 + 288 - 448 = ?
? = 224
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