Question
Phosphorus containing minerals
are:Solution
Strengite: FePO4.2H20 Apatite: Ca10 (PO4)62+ Goethite: FeOOH
When the profit obtained by selling an item for Rs. 768 is the same as the loss suffered when the item is sold for Rs. 312. What ...
21 is divided into three parts which are in arithmetic progression (A.P.) in such a way that the sum of their square is 179. Find the smallest part.
Find the mode for the given distribution.
(rounded off to two decimal places).
Sum of first 20 terms of an AP is 610. First term = 12. Find approximate common difference.
The 5th term of an AP is 23 and the 12th term is 51. Find the 20th term.
The area of a square is 900 cm2 which is 120 cm2 less than that of a rectangle. Find the perimeter of the rectangle if the length ...
The sum of three numbers in AP is 21, and their product is 315. Find the numbers.
What is the mean of the following numbers:
45, 50, 55, 60, 65
The sum of 6 consecutive odd numbers is 156. What will be the product of first number and the last number?
Which of the following statement(s) is/are correct?
(I) The area of a parallelogram with a base of ...
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