Question

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.) 

√31684.11 × √728.9 – (19.02)= ? × 4.99 

A 900 Correct Answer Incorrect Answer
B 889 Correct Answer Incorrect Answer
C 983 Correct Answer Incorrect Answer
D 1189 Correct Answer Incorrect Answer
E 1258 Correct Answer Incorrect Answer

Solution

√31684.11 × √728.9 – (19.02)= ? × 4.99  178 × 27 – 361 = ? × 5 4806 – 361 =? × 5 ? = 889

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