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# A computer operator can type 5,555 words in an hour. How many words will he type in 8 hours? Verified
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Hint: We can use the unitary method to solve this type of problem. The unitary method can be explained as - first finding the single unit’s value and then multiplying it with the desired number to get the final value.

Suppose that the cost of y bananas is Rs. x. If we are asked to find how many bananas can be bought for Rs. z, then we must find out the number of bananas that can be bought for Rs. 1 first. So, we get the number of bananas that can be bought for Rs.1 as $\dfrac{y}{x}$. Now, to find the number of bananas that can be bought for Rs. z, we just have to multiply the number of bananas bought for Rs. 1. Therefore, the number of bananas that can be bought for Rs. z is $\dfrac{y}{x}\times z$.
Number of words typed by the computer operator in 8 hours $=5,555\times 8$.
After multiplying $5,555\times 8$, we get 44,440.