Direction: What approximate value should come in the place of (?) in the following questions?
Q. 34.91 * 25.18 – 15.09 * 4.91 = ? * 19.92
A.20
B.30
C.40
D.50
E.25
Sol:
34.91 * 25.18 – 15.09 * 4.91 = ? * 19.92
875 – 75 = ? * 20
? = 40
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