2 Views

Question : Direction: Which of the following interchanges of numbers would make the given equation correct?

8 × 20 ÷ 3 + 9 – 5 = 38

Option 1: 3, 9

 

 

 

Option 2: 3, 8

Option 3: 8, 9

Option 4: 3, 5


Team Careers360 2nd Jan, 2024
Answer (1)
Team Careers360 18th Jan, 2024

Correct Answer: 3, 5


Solution : Given:
8 × 20 ÷ 3 + 9 – 5 = 38

Let's check the options –

First option: 3, 9
On replacing → 8 × 20 ÷ 9 + 3 – 5 = 38
= 8 × 20 ÷ 9 + 3 – 5
= 8 × 2.22 + 3 – 5
= 17.76 + 3 – 5
= 20.76 – 5
= 15.76 ≠ 38

Second option: 3, 8
On replacing → 3 × 20 ÷ 8 + 9 – 5 = 38
= 3 × 20 ÷ 8 + 9 – 5
= 3 × 2.5 + 9 – 5
= 7.5 + 9 – 5
= 16.5 – 5
= 11.5 ≠ 38

Third option: 8, 9
On replacing → 9 × 20 ÷ 3 + 8 – 5 = 38
= 9 × 20 ÷ 3 + 8 – 5
= 9 × 6.67 + 8 – 5
= 60.03 + 8 – 5
= 68.03 – 5
= 63.03 ≠ 38

Fourth option: 3, 5
On replacing → 8 × 20 ÷ 5 + 9 – 3 = 38
= 8 × 20 ÷ 5 + 9 – 3
= 8 × 4 + 9 – 3
= 32 + 9 – 3
= 41 – 3
= 38

Hence, the fourth option is correct.

SSC CGL Complete Guide

Candidates can download this ebook to know all about SSC CGL.

Download EBook

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