Solve the question on your notebook and check it by clicking (Answer and Explanation) below question.
In a group of ducks and buffaloes, the total number of legs are 24 more than twice the number of heads. Find the total number of buffaloes.
Let the number of buffaloes be x and the number of ducks be y
=> 4x + 2y = 2 (x + y) + 24
=> 2x = 24 => x = 12
If a - b = 3 and a2+b2=29 , then find the value of ab
If a - b = 3 and
a2+b2=29
, then find the value of ab
Remember the formula, if not then cram it :)
2ab=(a2+b2)-(a-b)2
=> 2ab = 29 - 9 = 20
=> ab = 10
Along a yard 225 meters long, 26 trees are planted at equal distances, one tree being at each end of the yard. What is the distance between two consecutive trees
26 trees have 25 gaps between them,
Required distance (225/25) = 10
In a class free notebooks were distributed among all the children. Each child got notebooks which were one-eighth of the number of children. If number of children been half, then each child would have recieved 16 notebooks in total. Find the total number of books distributed.
Let suppose total number of students in class are X.
Then from the question we can conclude it that,
The value of 25.25 – 23.23 + 24.24 is
First add or subtract the numbers before decimal point.
So 25 – 23 + 24 = 2 + 24 = 26
Now add or subtract the numbers after decimal point.
25 – 23 + 24 = 26 = 0.26 (since it is decimal)
Now add these numbers
Answer = 26 + 0.26 = 26.26
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