Bissoy.com
Doctors Medicines MCQs Q&A

What approximate value should come in place of question mark (?) in the following questions? (You are not expected to calculate the exact value). 780.059 + 49.937 × 30.079 - 59.591 = ?

What approximate value should come in place of question mark (?) in the following questions? (You are not expected to calculate the exact value). 780.059 + 49.937 × 30.079 - 59.591 = ? Correct Answer 2220

The given expression,

780.059 + 49.937 × 30.079 – 59.591 = ?

We can write the given values as,

780.059 ≈ 780, 49.937 ≈ 50, 30.079 ≈ 30 and 59.591 ≈ 60

Then,

⇒ 780 + 50 × 30 – 60 = ?

⇒ ? = 780 + 1500 – 60

⇒ ? = 2280 – 60

∴ ? ≈ 2220

Related Questions

In an examination, a student can choose the order in which two questions (QuesA and QuesB) must be attempted. - If the first question is answered wrong, the student gets zero marks. - If the first question is answered correctly and the second question is not answered correctly, the student gets the marks only for the first question. - If both the questions are answered correctly, the student gets the sum of the marks of the two questions. The following table shows the probability of correctly answering a question and the marks of the question respectively.  question Probability of answering correctly marks QuesA 0.8 10 QuesB 0.5 20 Assuming that the student always wants to maximize her expected marks in the examination, in which order should she attempt the questions and what is the expected marks for that order (assume that the questions are independent)? 
In an examination, two types of questions are asked: one mark questions and two marks questions. For each wrong answer, of one mark question, the deduction is 1/4 of a mark and for each wrong answer, of two marks question, the deduction is 1/3 of a mark. Moreover, 1/2 of a mark is deducted for any unanswered question. The question paper has 10 one mark questions and 10 two marks questions. In the examination, students got all possible marks between 25 and 30 and every student had different marks. What would be the rank of a student, who scores a total of 27.5 marks?
What approximate value should come in place of the question mark (?) in the following questions? [Note: You are not expected to calculate the exact value] f(2.2) where f(x) = x2 +2x + 1
What approximate value should come in place of question mark (?) in the following questions? (You are not expected to calculate the exact value). (12.51)4 = ?
What approximate value should come in place of question mark (?) in the following questions? (You are not expected to calculate the exact value). (4438 – 2874 – 559) ÷ (269 – 106 – 83) = ?
What approximate value should come in place of question mark (?) in the following questions? (You are not expected to calculate the exact value). (56)2 × 2.5385 = ?
What approximate value should come in place of question mark (?) in the following questions? (You are not expected to calculate the exact value). 999.77% of 5 – 10 × 3.93 = ?
What approximate value should come in place of the question mark (?) in the following questions? [Note: You are not expected to calculate the exact value] (35.289)2 – (26.68)2 = ? 
What approximate value should come in place of the question mark (?) in the following questions? [Note: You are not expected to calculate the exact value]. (3.5/1.9)th part of 3.14 + 197.17 × 11.025 ÷ 11 = ?
What approximate value should come in place of question mark (?) in the following questions? (You are not expected to calculate the exact value.) 5554.999 ÷ 50.007 = ?