Evaluate $[\begin{matrix} 28 % of 450 + 45 % of 280 \end{matrix}]$

126

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259

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112

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252

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Solution

The correct option is D $252$
$[\begin{matrix} {\begin{matrix} (\begin{matrix} \frac{28}{100} \end{matrix}) \times 450 \end{matrix}} + {\begin{matrix} (\begin{matrix} \frac{45}{100} \end{matrix}) \times 280 \end{matrix}} \end{matrix}]$
$= 126 + 126$
$= 252$

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Similar questions

Evaluate $\frac{15}{28}$ $\times$ $\frac{56}{45}$ .

A two digit number is such that the product of its digits is 28. When 112 is subtracted from the number, the digits interchange their places. Find the second degree equation in x from which we can find tens digit.

Q. Evaluate: 28% of 450 + 45% of 280

Evaluate: $\frac{s e c 29^{\circ}}{c o s e c 61^{\circ}}$ + $2 c o t 8^{\circ} c o t 17^{\circ} c o t 45^{\circ} c o t 73^{\circ} c o t 82^{\circ}$

Q. Evaluate:

\frac{{sec 29}^{\circ}}{cosec 61^{\circ}} + 2 cot 8^{\circ} cot 17^{\circ} cot 45^{\circ}

cot 73^{\circ} cot 82^{\circ} - 3 (sin^{2} 38^{\circ} + sin^{2} 52^{\circ})

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Evaluate [28%of450+45%of280]

The correct option is D 252[{(28100)×450}+{(45100)×280}]=126+126=252

Evaluate $[\begin{matrix} 28 % of 450 + 45 % of 280 \end{matrix}]$

The correct option is D $252$
$[\begin{matrix} {\begin{matrix} (\begin{matrix} \frac{28}{100} \end{matrix}) \times 450 \end{matrix}} + {\begin{matrix} (\begin{matrix} \frac{45}{100} \end{matrix}) \times 280 \end{matrix}} \end{matrix}]$
$= 126 + 126$
$= 252$