Question : Directions: By Interchanging the given two numbers which of the following equations will be correct?
5 and 4
I. 4 + 8 × 5 – 7 ÷ 1 = 30
II. 5 × 3 – 4 + 6 ÷ 2 = 11

Option 1: Both I and II

Option 2: Neither I nor II

Option 3: Only II

Option 4: Only I


Team Careers360 1st Jan, 2024
Answer (1)
Team Careers360 5th Jan, 2024

Correct Answer: Only I


Solution : Given:
I. 4 + 8 × 5 – 7 ÷ 1 = 30
II. 5 × 3 – 4 + 6 ÷ 2 = 11
Interchanging the numbers 5 and 4.

Equation I: 4 + 8 × 5 – 7 ÷ 1 = 30
⇒ 5 + 8 × 4 – 7 ÷ 1 = 30
= 5 + 8 × 4 – 7
= 5 + 32 – 7
= 37 – 7
= 30 = R.H.S.
Equation II: 5 × 3 – 4 + 6 ÷ 2 = 11
⇒ 4 × 3 – 5 + 6 ÷ 2 = 11
= 4 × 3 – 5 + 3
= 12 – 5 + 3
= 10 ≠ 11

So, only equation I satisfies the R.H.S. Hence, the fourth 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