5∗[−0.6(2.8+1.2)] of 0.3 is equal to:
- A-1.44
- B-1.08
- C-1.2
- D-3.6
Solution & Step-by-step Explanation
Using the BODMAS rule, we first evaluate the expression inside the brackets and the "of" operator.
First, solve the innermost addition:
2.8+1.2=4.0
Substitute this back into the square brackets:
−0.6(4.0)=−2.4
Now substitute this into the main expression:
5∗[−2.4] of 0.3
According to precedence rules, "of" represents multiplication that takes priority over standard multiplication/division:
[−2.4] of 0.3=−2.4×0.3=−0.72
Finally, multiply by 5:
5×(−0.72)=−3.6
First, solve the innermost addition:
2.8+1.2=4.0
Substitute this back into the square brackets:
−0.6(4.0)=−2.4
Now substitute this into the main expression:
5∗[−2.4] of 0.3
According to precedence rules, "of" represents multiplication that takes priority over standard multiplication/division:
[−2.4] of 0.3=−2.4×0.3=−0.72
Finally, multiply by 5:
5×(−0.72)=−3.6