Question 139

The missing term which makes the following a perfect square is
_____ - 48 pq + 36 $$ q^{2} $$

Solution

48p=2x(6q)x(4p)

thus if the unknown term is 4p$$^{2}$$ we can use the formula (a-b)$$^{2}$$ to simplify it.

∴ (4p)$$^{2}$$ -48pq +36q$$^{2}$$

=(4p-6q)$$^{2}$$ which is a perfect square.

Thus,16p$$^{2}$$ is the missing term

Create a FREE account and get:

Download RRB Study Material PDF
45+ RRB previous papers with solutions PDF
300+ Online RRB Tests for Free

CAT Quant Questions | CAT Quantitative Ability

CAT Venn Diagrams Questions CAT Algebra Questions CAT Progressions and Series Questions CAT Remainders Questions CAT Profit, Loss and Interest Questions

CAT DILR Questions | LRDI Questions For CAT

CAT Data Interpretation Questions CAT Data Interpretation Basics Questions CAT Data change over a period Questions CAT Miscellaneous LR Questions CAT Charts Questions

CAT Verbal Ability Questions | VARC Questions For CAT

CAT Grammar and Sentence Correction Questions CAT Vocabulary Questions CAT Miscellaneous Questions CAT Reading Comprehension Questions CAT Odd One Out Questions

Follow us on

Boost your Prep!

Download App