Instructions

What should come in place of the question mark (?) in the following questions?

Question 131

$$(45)^{2} + (21)^{2} = (?)^{2} + 257$$

Solution
Share

Expression : $$(45)^{2} + (21)^{2} = (?)^{2} + 257$$

=> $$2025 + 441 = (?)^2 + 257$$

=> $$?^2 = 2466 - 257$$

=> $$? = \sqrt{2209} = 47$$

Create a FREE account and get:

  • Banking Quant Shortcuts PDF
  • Free Banking Study Material - (15000 Questions)
  • 135+ Banking previous papers with solutions PDF
  • 100+ Online Tests for Free