Question

59
Find the approximate result of the following
expression (in whole numbers):
49.6 x 10.2 -7.1 x 29.7-5.1 x 20.1
(A) 390
(B) 290
(C) 209
(D) 190




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Answer 1

Answer:

49.6 x 10.2 -7.1 x 29.7-5.1 x 20.1=192.54

So, approximately it will 190

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Answer 2

Answer:

(D) 190

Step-by-step explanation:

estimate all the values to their nearest number,

= 50×10-7×30-5×20

Using BODMAS rule solve the equation,

=500-210-100

=500-(210+100)

=500-310

=190