Question

$(41.33{)}^2+(7.96{)}^2-(22.02{)}^2=?$

• A. 1280
• B. 1440
• C. 1580
• D. 1540
• E. 1380

Answer 1

The correct option is E 1380

Here, the given expression can be written as
$(42{)}^2+(8{)}^2-(22{)}^2=?$
or $?=\left(1764\right)+64-484$
or $?=1828-484$
or $?=1344\approx 1380$