Blubber makes up 27 percent of a blue whale’s body weight. Deepak found the average weight of blue whales and used it to calculate the average weight of their blubber. He wrote the amount as 2² × 3² × 5 × 17 kg. Evaluate this amount.
Solution:
Given, blubber makes up 27 percent of a blue whale’s body weight.
Deepak found the average weight of blue whales and used it to calculate the average weight of their blubber.
He wrote the amount as 2² × 3² × 5 × 17 kg.
We have to evaluate the amount.
For any non-zero integers ‘a’ and whole numbers m
a × a × a⋯ m times = am
So, 2² = 2 × 2 = 4
3² = 3 × 3 = 9
Now, 2² × 3² × 5 × 17 = 4 × 9 × 5 × 17
= 20 × 9 × 17
= 180 × 17
= 3060 kg
Therefore, the weight calculated by Deepak is 3060 kg.
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☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 13
NCERT Exemplar Class 7 Maths Chapter 11 Problem 94
Blubber makes up 27 percent of a blue whale’s body weight. Deepak found the average weight of blue whales and used it to calculate the average weight of their blubber. He wrote the amount as 2² × 3² × 5 × 17 kg. Evaluate this amount.
Summary:
Blubber makes up 27 percent of a blue whale’s body weight. Deepak found the average weight of blue whales and used it to calculate the average weight of their blubber. He wrote the amount as 2² × 3² × 5 × 17 kg. On evaluating this amount we get 3060 kg.
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