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Logic Level 1

Using only the 4 basic arithmetic operations ( $+, -, \times, \div$ ), what is the largest possible value of

$\large 1\, \square\, 2\,\square \,3\, \square \, 4 ?$

14 24 25 27

5 solutions

Munem Shahriar
Jan 21, 2018

Since we are looking for the maximum value, we will not use $\div,-$ . Because it will decrease the result.

Case 1: $1 \times 2 \times 3 \times 4 = 24$

Case 2: $1 + 2 \times 3 \times 4 = 25$

Since 25 > 24, 25 is maximum.

Azadali Jivani
Jan 28, 2018

(1+2)(3)(4)=36

You are not allowed to use parentheses, so your answer is actually 1+2x3x4 which is 25

Trung Phan - 3 years, 3 months ago

Zahid Hussain
Jul 18, 2019

I guess like the last question it should have been clarified whether you are allowed to use one function more than once or not.

Netham Qasem
Jan 20, 2018

1+(2×3×4)=25

It didn't say you could use brackets, only the four basic operations.

Andrew Bourke - 3 years, 4 months ago

The brackets are unnecessary, as multiplication will take priority over the addition anyway. If brackets were allowed, the maximum would be (1 + 2) x 3 x 4 = 36

Steve Edwards - 3 years, 4 months ago

You can only use four basic operations.

Munem Shahriar - 3 years, 4 months ago

You must use just basic operation to solve it but you used brackets.

Also it is not neccessary to use.

Matin Naseri - 3 years, 4 months ago

Elie Nassar
Jan 20, 2018

1+ (2x3x4)=25

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