Which of the following can be used to compute (34 × 4 1/2)? · ABC26GN0930
Subject: General Aptitude · Chapter: Simplification
Which of the following can be used to compute $\left(34 \times 4 \frac{1}{2}\right)$?
(a)$(30 \times 4)+\left(4 \times 4 \frac{1}{2}\right)$
(b)$(34 \times 40)+\left(34 \times \frac{1}{2}\right)$
(c)$\left(30 \times 4 \frac{1}{2}\right)+(4 \times 4)$
(d)$\left(34 \times \frac{1}{2}\right)+(30 \times 4)+(4 \times 4)$
Answer
Explanation
$\left(34 \times 4 \frac{1}{2}\right) =34 \times\left(4+\frac{1}{2}\right)=(34 \times 4)+\left(34 \times \frac{1}{2}\right) =(30+4) \times 4+\left(34 \times \frac{1}{2}\right) =(30 \times 4)+(4 \times 4)+\left(34 \times \frac{1}{2}\right)$.
Explanation as extracted from the printed page; notation may be imperfect.
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