QUESTION

CSAT

Easy

Reasoning

Prelims 2019

If $ means ‘divided by’; @ means ‘multiplied by’; # means ‘minus’, then the value of $10#5@1$5$ is

Select an option to attempt

Explanation

Substitute the symbols: $10\#5\@1\$ 5 $becomes$ 10-5\times1\div5$

Apply the BODMAS rule (Brackets, Orders, Division and Multiplication, Addition and Subtraction):

First, perform the division: $1\div5=0.2$ Next, perform the multiplication: $5\times0.2=1$ Finally, perform the subtraction: $10-1=9$ Therefore, the value of $10\#5\@1\$ 5$ is 9.

Answer: D. 9

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