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Question
Jessy is studying aboard. During her holidays, she travels to her hometown. She covers 125 miles by train and 53 miles by bus. How much more distance did she travel by train than by bus estimated to the nearest tens?
Jessy is studying aboard. During her holidays, she travels to her hometown. She covers 125 miles by train and 53 miles by bus. How much more distance did she travel by train than by bus estimated to the nearest tens?
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Solution
The correct option is B 80
Distance travelled by train = 125 miles
Distance travelled by bus = 53 miles
Estimating follows the given rules:
i. If the deciding digit < 5, then round down.
ii. If the deciding digit > 5, then round up.
iii. If the deciding digit = 5, then round up.
Difference = Distance covered by train – Distance covered by bus
= 125 – 53
Rounding the numbers to the nearest tens, we get:
= 130 – 50
Subtracting the rounded numbers, we get:
So, the estimated distance she covered more by train than by bus is 80 miles.
Distance travelled by train = 125 miles
Distance travelled by bus = 53 miles
Estimating follows the given rules:
i. If the deciding digit < 5, then round down.
ii. If the deciding digit > 5, then round up.
iii. If the deciding digit = 5, then round up.
Difference = Distance covered by train – Distance covered by bus
= 125 – 53
Rounding the numbers to the nearest tens, we get:
= 130 – 50
Subtracting the rounded numbers, we get:
So, the estimated distance she covered more by train than by bus is 80 miles.Suggest Corrections
0
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