Simplify {0.9[2.3-3.2-(7.1-5.4-3.5)]} :

  1. 0.18
  2. 1.8
  3.  0
  4. 2.6
Anurag Mishra Professor Asked on 8th October 2015 in Maths.
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1 Answer(s)

Answer: (1) 0.81

Explanation:-
{0.9[2.3 – 3.2 – (7.1 – 5.4 – 3.5)]}
= {0.9[ 2.3 – 3.2 –  (7.1 – 8.9)]}
= {0.9 [2.3 – 3.2 – (- 1.8)]}
= {0.9 [ 2.3 – 3.2 + 1.8]}
= {0.9 [4.1 – 3.2]}
= {0.9 [0.9]}
= 0.9 x 0.9
= 0.81

Then, the value of {0.9[2.3 – 3.2 – (7.1 – 5.4 – 3.5)]} is 0.81.

Hence, the answer is (1) 0.81.

Anurag Mishra Professor Answered on 10th October 2015.
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