The weight of brain is …….. % of the whole body.
A) 1%
B) 2%
C) 3%
D) 4%
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Between which two whole numbers on the number line are the given numbers lie? Which of these whole numbers is nearer the number? (a) 0.8 (b) 5.1 (c) 2
Correct Answer - (a) 0 और 1;1 `" "` (b) 5 और 6;5 (c ) 2 और 3;3 `" "` (d) 6 और 7;6 (e) 9.0 स्वयं 9 पूर्ण संख्या...
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The part of brain that joins fore brain and mid brain
Answer is (A) Medulla
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Brain uses ……… of the whole body energy.
Brain uses 20% of the whole body energy.
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The average weight of 5 packets is 24 kgs and the average weight of another 10 packets is 12 kgs, then average weight of 15 packets is ……………….
Correct option is (B) 16 Kgs Average weight of 15 packets \(=\frac{5\times24+10\times12}{15}\) \(=\frac{120+120}{15}\) \(=\frac{240}{15}\) = 16 kg
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The average weight of 5 packets is 24 kgs and the average weight of another 10 packets is 12 kgs, then average weight of 15 packets is ……………….
2 Answers
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A. In all the body systems, the brain is so important. R. Brain co-ordinates all the systems.
A) A and R both are correct. R is the correct explanation to A .
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Weight of a body on the surface of the earth is W. Then weight of the same body on the surface of a planet whose mass is double
D) \(\cfrac{2\,W}9\)
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Assertion : 10 kg body weight 98 N Reason : weight W – m$ A) Both A and R are correct and R support A
A) Both A and R are correct and R support A
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c. The in weight. The weight of \( 6 students \) are \( 49 kg , 52 kg , 51 kg , 58 kg \), and \( 55 kg \) respectively. Find the mean weight.
MEAN = SUM OF OBSERVATION / TOTAL NO. OF OBSERVATION = 49+52+51+58+55/5= 265/5= 53
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The average weight of 55 students is 55 kg , and the average weight of another 45 students is 45 kg . Find the average weight of all the students .
Correct Answer - c Average = `("Sum of the quantities")/("Number of the quantities")`
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