Question
Meher had two large chunks of coal. She set fire to the
first chunk and broke the second one into pieces. Help Meher understand what kind of changes happened to the two chunks of coal at the end of the activity by choosing all the applicable statements. A. Both chunks of coal underwent physical changes only. B. The changes were reversible for the first chunk of coal only. C. Only physical changes took place for the second chunk of coal. D. Both chunks of coal underwent chemical changes only. E. The first case is an example of chemical changes.Solution
The correct answer is C
Priya had 108 chocolates of two types – dairy and dark. If she receives 36 more dairy chocolates, the ratio of dairy to dark chocolates becomes 5:4. F...
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If X + Y = 23 and XY = 126, what is the value of (X)² + (Y)² ?
In a school a total of 3,920 candies was distributed among all the students in the school. The candies were distributed in such a way that number of can...
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What is the least positive number which leaves remainders 5, 7, and 8 when divided by 6, 8, and 9 respectively?
Find the median of the given set?
8,9,17,10,23,11,7,21,15,6,3
What is the smallest number that should be added to 987 so that the sum is exactly divisible by 11?
The following dataset represents the examination scores achieved by 10 students:
36, 91, 80, 77, 64, 80, 45, 56, 41, 96
Find the median of...
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