1 View

Question : Directions: Which two numbers should be interchanged to make the given equation correct?
9 + 30 × 15 – 18 ÷ 6 = 274

Option 1: 18 and 9

Option 2: 30 and 18

Option 3: 15 and 18

Option 4: 9 and 30


Team Careers360 15th Jan, 2024
Answer (1)
Team Careers360 17th Jan, 2024

Correct Answer: 30 and 18


Solution : Given:
9 + 30 × 15 – 18 ÷ 6 = 274

Let's check the given options –
First Option: 18 and 9
⇒ 18 + 30 × 15 – 9 ÷ 6 = 274
Solving the L.H.S. of the equation –
= 18 + 30 × 15 – 1.5
= 18 + 450 – 1.5
= 466.5 ≠ 274
Second option: 30 and 18
⇒ 9 + 18 × 15 – 30 ÷ 6 = 274
Solving the L.H.S. of the equation –
= 9 + 18 × 15 – 5
= 9 + 270 – 5
= 274 = R.H.S.
Third option: 15 and 18
⇒ 9 + 30 × 18 – 15 ÷ 6 = 274
Solving the L.H.S. of the equation –
= 9 + 30 × 18 – 2.5
= 9 + 540 – 2.5
= 546.5 ≠ 274
Fourth option: 9 and 30
⇒ 30 + 9 × 15 – 18 ÷ 6 = 274
Solving the L.H.S. of the equation –
= 30 + 9 × 15 – 3
= 30 + 135 – 3
= 162 ≠ 274

So, only the second option satisfies the given equation. Hence, the second option is correct.

Know More About

Related Questions

TOEFL ® Registrations 2024
Apply
Accepted by more than 11,000 universities in over 150 countries worldwide
Manipal Online M.Com Admissions
Apply
Apply for Online M.Com from Manipal University
GRE ® Registrations 2024
Apply
Apply for GRE® Test now & save 10% with ApplyShop Gift Card | World's most used Admission Test for Graduate & Professional Schools
View All Application Forms

Download the Careers360 App on your Android phone

Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile

150M+ Students
30,000+ Colleges
500+ Exams
1500+ E-books