The average rainfall of a desert is less than
A) 20 cm
B) 24 cm
C) 23 cm
D) 28 cm
1 Answers
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The rainfall (in mm) in a city on 7 days of a certain week was recorded as follows: (i) Find the range of the rainfall in the above data. (ii) Find th
Correct Answer - (i) 20.5 (ii) 5.9 (iii) 5
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There are 50 students in a class, of which 40 are boys. The average weight of the class is 44 kg and that of the grils is 40 kg. find the average weig
Correct Answer - 45 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 ……………….
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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The average rainfall in a desert is
D) Less than 23 mm
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Desert is an ecosystem. The conditions are different when we compare other terrestrial ecosystem. Rainfall is very less. Plants
D) all the given
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Assertion (A): The largest desert in Asia is the Arabian Desert.
(a) Both A and R are individually true and R is the correct explanation for A
2 Answers 1 views
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")`
2 Answers 2 views
Assertion . Molecular nitrogen is less reactive than molecular oxygen. Reason. The bond length of `N_(2)` is shorter than that of oxygen .
Correct Answer - a R is the correct explanation of A .
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Assertion `(A): beta-` particles have greater penetrating power than `alpha-` rays but less than `gamma-`rays. Reason `(R) : beta-` particles are ligh
Correct Answer - A Refer Section
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