Instructions

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

Question 13

$$15 \div 12.5 \times 35 + 42.8 \times 2.5 =?^{2} + 10^{2}$$

Solution

Expression : $$15 \div 12.5 \times 35 + 42.8 \times 2.5 =?^{2} + 10^{2}$$

=> $$\frac{15 \times 35}{12.5} + 107 = (x)^2 + 100$$

=> $$42 + 107 - 100 = x^2$$

=> $$x^2 = 149 - 100 = 49$$

=> $$x = \sqrt{49} = 7$$


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

cracku

Boost your Prep!

Download App