Word problems on multiplication

Example 1

Marina harvested 30,876 pineapples from her farm. She sold each pineapple at 1,592 shillings. How much money did she earn?

Solution

Number of pineapples = 30,876

The price of one pineapple = 1,592 shillings

In order to obtain the amount of money she earned, multiply the number of pineapples by the price of one pineapple, that is:

    30 876
  × 15 992
  --------
     61 752
   277 884
   154 380
 + 308 760
  --------
 4 915 459 2

Therefore, Marina earned 49,154,592 shillings.

Example 2

A house was constructed by using 15,020 bricks. How many bricks will be used to construct 23,136 houses of the same kind?

Solution

Number of bricks for one house = 15,020

To obtain the number of bricks required to construct 23,136 houses, multiply the number of bricks needed to construct one house by the number of houses to be constructed.

    15 020
  × 23 136
  --------
    90 120
   450 600
   150 200
   450 600
 + 300 040
  --------
 347 502 720

Therefore, 23,136 houses of the same kind will require 347,502,720 bricks.