Directions (46-60) : What should come in place of question mark (?) in the following questions ?
\( \Large 0.36 \times 0.36 + 0.28 \times 0.36 + 0.14^{2} = ? \)
Correct Answer: Description for Correct answer:
\( \Large \times \times \left(0.14\right)^{2} = ? \)
=>\( \Large a^{2} + b^{2} + 2ab = \left(a + b\right)^{2} \)
=>\( \Large ? = \left(o.36\right)^{2} + \left(0.14\right)^{2} + 2 \times 0.14 \times 0.36 \)
=>\( \Large ? = \left(o.36\right)^{2} + \left(0.14\right)^{2} = \left(0.5\right)^{2} \)
=>\( \Large ? = 0.25 \)
Part of solved IBPS Clerk-Preliminary Exam questions and answers :
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