Question 34

If $$10 \times 1 = 18, 50 \times 40 = 20$$ and $$3 \times 2 = 2$$, then find the value of $$10 \times 5 = ?$$

Solution

Given, $$10 \times 1 = 18, 50 \times 40 = 20$$ and $$3 \times 2 = 2$$

The logic here is

$$\left(10-1\right)\times2=18$$

$$\left(50-40\right)\times2=20$$

$$\left(3-2\right)\times2=2$$

The coded value is the product of 2 and difference of two numbers.

Similarly,

$$\left(10-5\right)\times2=10$$

$$\therefore\ $$ $$10 \times 5 = 10$$

Hence, the correct answer is Option A

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