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.) 191.99 + 143.55 β 308.07 = 172.83 β 156.78 + ?Solution
ATQ,
191.99 + 143.55 β 308.07 = 172.83 β 156.78 + ?
190 + 140 β 310 ~ 170 β 160 + ?
20 ~ 10 + ?
? ~ 20 β 10
? ~ 10
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