Question

Fill in the blanks: $[1.5\times (1+\_\_\_\left)\right]÷4.5+1÷2=1$

• A. 0.3
• B. 0.5
• C. 1
• D. 0

Answer 1

The correct option is B

0.5

$\text{We have to use BODMAS rule for the calculations.}\text{Let the number in the blank be x.}\{[1.5\times (1+x\left)\right]÷4.5+1÷2\}=1\{[1.5+1.5x)]÷4.5+1÷2\}=1\{[1.5+1.5x)]÷4.5+0.5\}=11.5÷4.5+1.5x÷4.5=1-0.5\frac{1}{3}=\frac{1}{2}-\frac{1}{3}\frac{x}{3}=\frac{1}{5}x=\frac{1}{2}x=0.5$