IBPS Question of the day


IBPS Question of the day. Numerical ability

1. Simplify the following sum

317 x 317 + 134 x 134 + 2 x 317 x 134


Answer:
Explain the answer




2.Which of the following numbers is divisible by 3  and explain how?

(i) 541326 (ii) 5967013

Answer:
Explain the answer

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2 comments:

  1. Answer 1. = (317)2+ (134)2+ (2 x 317x 134)
    = a2 + b2 + 2ab, where a = 317,b=134
    = (a+b)2 = (317 + 134 )2 = (451)2 = 203401.

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  2. The number 541326 is divisible by 3 because the sum of the number is 21 which is divisible by 3.Therefore,the no. is divisible by three.
    Hence,(i) is the correct answer.

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