Discussion
What approximate value should come in place of the question mark (?) in the following equation?
45.67 ÷ 22.89 − 56.69 + 23.89 × 13.37 = ?
Answer: A
The approximate value is 257. Round each number: 45.67 ÷ 22.89 is about 2, 56.69 is about 57, and 23.89 × 13.37 is about 24 × 13. \[ 2 - 57 + 24 \times 13 \] \[ 2 - 57 + 312 = 257 \] Exact working gives a value near 265, and among the options only 257 is anywhere close, because 216, 345 and 378 are all far from it. The question asks for an approximate value, so the option nearest the estimate is correct. A second look at the exact figures shows that 45.67 ÷ 22.89 is just under 2, 23.89 × 13.37 is about 319 and the sum is about 265, which still leaves 257 as the closest option.
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development