1). 112). 1213). 0.114). 0.21

1.	1). 112). 1213). 0.114). 0.21
Answer» Follow BODMAS rule to solve this question, as per the order given below, Step-1: Parts of an equation ENCLOSED in 'Brackets' MUST be SOLVED first, and in the bracket, Step-2: Any mathematical 'Of' or 'Exponent' must be solved next, Step-3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated, Step-4: Last but not least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated. Given expression is, ⇒ 5.4% of 800 + 4.2% of 600 = 64 + (? × 0.4) $(\left( {5 \TIMES 2.4 - 3 \times 1.8} \right) + 10.4 = 0.34 \:\times \:?)$ ⇒ 5.4 × 8 + 4.2 × 6 = 64 + (? × 0.4) ⇒ 43.2 + 25.2 = 64 + (? × 0.4) ⇒ 68.4 = 64 + (? × 0.4) ⇒ ? × 0.4 = 68.4 - 64 ⇒ ? × 0.4 = 4.4 ⇒ ? = 4.4/0.4 = 11 ⇒ ? = 11

Answer»

Follow BODMAS rule to solve this question, as per the order given below,

Step-1: Parts of an equation ENCLOSED in 'Brackets' MUST be SOLVED first, and in the bracket,

Step-2: Any mathematical 'Of' or 'Exponent' must be solved next,

Step-3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated,

Step-4: Last but not least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated.

Given expression is,

⇒ 5.4% of 800 + 4.2% of 600 = 64 + (? × 0.4)

$(\left( {5 \TIMES 2.4 - 3 \times 1.8} \right) + 10.4 = 0.34 \:\times \:?)$

⇒ 5.4 × 8 + 4.2 × 6 = 64 + (? × 0.4)

⇒ 43.2 + 25.2 = 64 + (? × 0.4)

⇒ 68.4 = 64 + (? × 0.4)

⇒ ? × 0.4 = 68.4 - 64

⇒ ? × 0.4 = 4.4

⇒ ? = 4.4/0.4 = 11

⇒ ? = 11

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