Question 138

About 230 billion litres of water flows through a river each day, how many litres of water flows through that river in a week? How many litres of water flows through the river in an year? Write your answer in standard notation.

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Solution

Water flows through a river in each day=230000000000 or 230 billion
Water flows through the river in a week $7 \times 230000000000 = 1610000000000 = 1610 b i l l i o n = 1.61 \times 10^{12} L$
Water flows through the river in an year= $230000000000 \times 365 = 83950000000000 = 8.395 \times 10^{13} L$

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Question 138 About 230 billion litres of water flows through a river each day, how many litres of water flows through that river in a week? How many litres of water flows through the river in an year? Write your answer in standard notation.

Water flows through a river in each day=230000000000 or 230 billion Water flows through the river in a week 7×230000000000 =1610000000000 =1610billion =1.61×1012L Water flows through the river in an year= 230000000000×365 =83950000000000 =8.395×1013L

Question 138

About 230 billion litres of water flows through a river each day, how many litres of water flows through that river in a week? How many litres of water flows through the river in an year? Write your answer in standard notation.