Question
Download Solution PDFWhat should come in the place of question mark (?) in the following question?
\(\frac{{7.2}}{{\sqrt[3]{{0.729}}}} = \frac{{{{\left( ? \right)}^3}}}{{{{\left( 2 \right)}^3}}}\)
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept used:
Follow BODMAS rule to solve this question, as per the order given below:
\(\frac{{7.2}}{{\sqrt[3]{{0.729}}}} = \frac{{{{\left( ? \right)}^3}}}{{{{\left( 2 \right)}^3}}}\)
\(\Rightarrow \frac{{7.2}}{{\sqrt[3]{{\frac{{729}}{{1000}}}}}} = \frac{{{{\left( ? \right)}^3}}}{{{{\left( 2 \right)}^3}}}\)
\(\Rightarrow \frac{{7.2}}{{\sqrt[3]{{{{\left( {\frac{9}{{10}}} \right)}^3}}}}} = \frac{{{{\left( ? \right)}^3}}}{{{{\left( 2 \right)}^3}}}\)
\(\Rightarrow {\rm{\;}}\frac{{7.2}}{{\sqrt[3]{{{{\left( {0.9} \right)}^3}}}}} = \frac{{{{\left( ? \right)}^3}}}{{{{\left( 2 \right)}^3}}}\)
\(\Rightarrow \frac{{7.2}}{{0.9}} = \frac{{{{\left( ? \right)}^3}}}{{{{\left( 2 \right)}^3}}}\)
⇒ 8 = (?)3/(2)3
⇒ (2)3 = (?)3/(2)3
⇒ 23 × 23 = (?)3
⇒ 43 = (?)3
⇒ ? = 4
∴ The value of ? is 4.Last updated on Jul 22, 2025
-> The IBPS PO 2025 Application Dates have been extended. Candidates can now apply till 28th July 2025.
-> As per the notification, a total of 5208 vacancies have been announced for the post of Probationary Officers (PO)/Management Trainees across various public sector banks.
-> The selection process for IBPS PO includes a Preliminary Exam, a Mains Exam, and an Interview.
-> The selected candidates will get a IBPS PO Salary pay scale from Rs. 48480 to Rs. 85920.
-> Candidates must download and practice questions from the IBPS PO previous year's papers and IBPS PO mock tests for effective preparation.