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sanjay gupta

· started a discussion

· 1 Months ago

is there any other way orshort tricks to solve this simplifiations (Question:661345.0)

if the options were similar to answers ..like if all the option contained even digit. Then how can we do this question?

Question:

157.46 × 32.52 + 15.3 × 13.6 + 14.2 × 1083

Options:
A)

20707.2792

B)

10834.57

C)

21945.23

D)

21962.35

E)

None of these

Solution:

Ans:(a) (157.46 × 32.52) + (15.3 × 13.6) + (14.2 × 1083)

= (E × E) + (O × E ) + (E × O)

= E + O + O

= E + E = E

Here only one option having unit digit even. So option (a) is correct

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